Summary of Key Points from Conference Call Records Industry Overview - The basic metals sector is under pressure, with tin and lead prices dropping by 3.15% and 2.10% respectively, indicating weak performance in the black series commodities, where coking coal and coke fell by 2.20% and 1.91% respectively [1] - The agricultural products market showed mixed results, with major indices experiencing slight declines, such as the Shanghai Composite Index down by 0.02% to 3339.93 points [1] Real Estate Market Insights - A report from Goldman Sachs highlighted that the real estate market in the 21st domestic state is stabilizing, with notable performance in export-dependent cities. The transaction volume for new and second-hand homes increased by 9% and 3% respectively on a month-over-month basis [2][3] - The central government has launched a city renewal plan, including old community renovations and fiscal support, aimed at boosting market confidence. Despite a slight decrease of 1% in new home sales area, first-tier and mid-west cities continue to lead in performance [2] Construction Sector Challenges - Predictions indicate a year-over-year decline of approximately 20% and 10% in new construction and completion areas, reflecting ongoing supply-side pressures in the industry [3] - The report emphasizes the structural advantages of export-oriented cities and the long-term impact of policy support, although the market still faces challenges in supply-demand adjustments [3] Global Economic Context - The Reserve Bank of New Zealand has lowered its benchmark interest rate by 25 basis points to 3.25%, marking the sixth consecutive cut since August 2024, with a cumulative reduction of 225 basis points [3] - The RBNZ forecasts a further decline in cash rates to 2.92% by Q4 2025 and 2.85% by Q1 2026, indicating a deeper easing cycle amid growing concerns over economic prospects [3] U.S. Treasury Market Dynamics - The U.S. Treasury market is experiencing increased risk perception, with the 20-year Treasury bond auction on May 21 facing weak demand, resulting in a high yield of 5.047%, the second-highest on record [4] - Moody's downgrade of the U.S. sovereign rating signifies a loss of the highest credit rating by all three major rating agencies, amplifying market risk expectations [4] Investor Sentiment and Market Reactions - Despite declines in U.S. equities and bonds, a report from Japan suggesting a potential reduction in long-term bond issuance has alleviated some market anxiety, potentially benefiting U.S. Treasury markets [5] - The global bond market is undergoing significant changes, with increased risks associated with traditionally safe U.S. Treasuries, leading investors to consider assets in other countries [6] Geopolitical Factors - The geopolitical landscape remains tense, with the EU condemning Israeli military actions in Gaza, and discussions around defense systems involving Canada and the U.S. [6]

1. Report Summary - The report provides a morning briefing on metal option strategies, covering various metal options including non - ferrous metals, precious metals, and black metals. It includes market overviews, option factor analyses, and strategy recommendations for each metal option [2]. 2. Core Views - For non - ferrous metals, which are in a state of shock and decline, a seller's neutral volatility strategy is recommended; black metals are in a range - bound consolidation phase, suitable for constructing a seller's option neutral combination strategy; precious metals like gold are in a high - level consolidation with a weak decline, suggesting a spot hedging strategy [2]. 3. Specific Summaries by Category 3.1 Market Overview of Underlying Futures - The report details the latest prices, price changes, price change percentages, trading volumes, volume changes, open interests, and open interest changes of various metal futures contracts such as copper, aluminum, zinc, etc. For example, the latest price of copper (CU2508) is 78,020, with a decline of 270 and a decline rate of 0.34% [3]. 3.2 Option Factor Analysis 3.2.1 Volume and Open Interest PCR - The volume and open interest PCR of each metal option are presented, which are used to describe the strength of the option underlying market and the turning point of the underlying market respectively. For instance, the open interest PCR of copper options is 0.60, with a change of - 0.01 [4]. 3.2.2 Pressure and Support Levels - The pressure and support levels of each metal option are analyzed from the perspective of the exercise prices with the largest open interest of call and put options. For example, the pressure level of copper is 82,000, and the support level is 78,000 [5]. 3.2.3 Implied Volatility - The report shows the at - the - money implied volatility, weighted implied volatility, and its changes, annual average, call and put implied volatilities, historical volatility, and the difference between implied and historical volatilities of each metal option. For example, the weighted implied volatility of copper is 17.19%, with a change of - 0.35% [6]. 3.3 Strategy Recommendations 3.3.1 Non - Ferrous Metals - **Copper Options**: Based on fundamental and market analysis, the strategy includes constructing a short - volatility seller's option combination strategy and a spot long - position hedging strategy [8]. - **Aluminum/Alumina Options**: Recommendations are a call option bull spread strategy, a short - position call + put option combination strategy, and a spot collar strategy [9]. - **Zinc/Lead Options**: A short - neutral call + put option combination strategy and a spot collar strategy are suggested [9]. - **Nickel Options**: A short - bearish call + put option combination strategy and a spot long - position hedging strategy are recommended [10]. - **Tin Options**: A short - volatility strategy and a spot collar strategy are proposed [10]. - **Lithium Carbonate Options**: A short - bullish call + put option combination strategy and a spot long - position covered call strategy are recommended [11]. 3.3.2 Precious Metals - **Gold/Silver Options**: A short - bullish short - volatility option seller's combination strategy and a spot hedging strategy are suggested [12]. 3.3.3 Black Metals - **Rebar Options**: A short - neutral call + put option combination strategy and a spot long - position covered call strategy are recommended [13]. - **Iron Ore Options**: A short - bullish call + put option combination strategy and a spot long - position collar strategy are suggested [13]. - **Ferroalloy Options**: A short - volatility strategy for manganese silicon options is proposed, and for industrial silicon/polysilicon options, a call option bull spread strategy, a short - bullish call + put option combination strategy, and a spot hedging strategy are recommended [14]. - **Glass Options**: A short - volatility short - call + put option combination strategy and a spot long - position collar strategy are recommended [15].

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - For non - ferrous metals, which are in a state of shock and decline, it is recommended to construct a seller's neutral volatility strategy [2] - For the black series, which are in a state of range consolidation and shock, it is suitable to construct a seller's option neutral combination strategy [2] - For precious metals, specifically gold, which is in a state of high - level consolidation and weak decline, it is recommended to construct a spot hedging strategy [2] 3. Summary by Related Catalogs 3.1 Futures Market Overview - Copper (CU2508): The latest price is 78,320, down 210 (-0.27%), with a trading volume of 8.17 million lots (down 1.76 million lots) and an open interest of 17.87 million lots (down 0.24 million lots) [3] - Aluminum (AL2508): The latest price is 20,645, down 70 (-0.34%), with a trading volume of 12.02 million lots (down 1.87 million lots) and an open interest of 25.51 million lots (down 0.05 million lots) [3] - Zinc (ZN2508): The latest price is 22,215, down 185 (-0.83%), with a trading volume of 12.94 million lots (down 1.71 million lots) and an open interest of 10.76 million lots (down 0.50 million lots) [3] - Other metals follow a similar pattern of price, trading volume, and open - interest changes [3] 3.2 Option Factors - Volume and Open Interest PCR - For copper options, the volume PCR is 0.42 (down 0.11), and the open - interest PCR is 0.60 (up 0.01) [4] - For aluminum options, the volume PCR is 0.71 (down 0.11), and the open - interest PCR is 0.92 (up 0.03) [4] - Different metals show various trends in volume and open - interest PCR [4] 3.3 Option Factors - Pressure and Support Levels - Copper: The pressure level is 82,000, and the support level is 78,000 [5] - Aluminum: The pressure level is 20,600, and the support level is 20,000 [5] - Other metals also have corresponding pressure and support levels [5] 3.4 Option Factors - Implied Volatility - Copper: The at - the - money implied volatility is 11.81%, the weighted implied volatility is 17.54% (down 0.23%), and the implied - historical volatility difference is - 3.44% [6] - Aluminum: The at - the - money implied volatility is 9.15%, the weighted implied volatility is 12.14% (up 0.27%), and the implied - historical volatility difference is - 1.54% [6] - Each metal has its own implied volatility characteristics [6] 3.5 Strategy and Recommendations for Different Metals 3.5.1 Non - ferrous Metals - **Copper**: Directional strategy: None; Volatility strategy: Construct a short - volatility seller's option portfolio; Spot long - hedging strategy: Hold spot long + buy put options + sell out - of - the - money call options [8] - **Aluminum/Alumina**: Directional strategy: Bull spread strategy for call options; Volatility strategy: Construct a short call + put option portfolio; Spot long - hedging strategy: Construct a spot collar strategy [9] - **Zinc/Lead**: Directional strategy: None; Volatility strategy: Construct a short neutral call + put option portfolio; Spot long - hedging strategy: Construct a spot collar strategy [9] - **Nickel**: Directional strategy: None; Volatility strategy: Construct a short bearish call + put option portfolio; Spot long - hedging strategy: Hold spot long + buy put options [10] - **Tin**: Directional strategy: None; Volatility strategy: Short - volatility strategy; Spot long - hedging strategy: Construct a spot collar strategy [10] - **Lithium Carbonate**: Directional strategy: None; Volatility strategy: Construct a short neutral call + put option portfolio; Spot long - hedging strategy: Hold spot long + sell call options [11] 3.5.2 Precious Metals - **Gold/Silver**: Directional strategy: None; Volatility strategy: Construct a long - biased short - volatility option seller's portfolio; Spot hedging strategy: Hold spot long + buy put options + sell out - of - the - money call options [12] 3.5.3 Black Series - **Rebar**: Directional strategy: None; Volatility strategy: Construct a short neutral call + put option portfolio; Spot long - hedging strategy: Hold spot long + sell call options [13] - **Iron Ore**: Directional strategy: None; Volatility strategy: Construct a short bullish call + put option portfolio; Spot long - hedging strategy: Construct a long collar strategy [13] - **Ferroalloys**: Directional strategy: None; Volatility strategy: Short - volatility strategy; Spot hedging strategy: None for manganese silicon [14] - **Industrial Silicon/Polysilicon**: Directional strategy: None; Volatility strategy: Construct a short neutral call + put option portfolio; Spot long - hedging strategy: Hold spot long + sell call options [14] - **Glass**: Directional strategy: None; Volatility strategy: Construct a short - volatility call + put option portfolio; Spot long - hedging strategy: Construct a long collar strategy [15]

Group 1: Report Summary - The report provides a strategy morning report for metal options on July 11, 2025, covering有色金属, precious metals, and black metals [1][2]. - It includes an overview of the underlying futures market, analysis of option factors, and specific option strategies and recommendations for each metal variety [3][4][7]. Group 2: Underlying Futures Market Overview - The report presents the latest prices, price changes, trading volumes, and open interest of various metal futures contracts, such as copper, aluminum, zinc, etc. [3] Group 3: Option Factor Analysis - Option factor analysis includes volume - open interest PCR, pressure and support levels, and implied volatility for different metal options [4][5][6]. - Volume PCR and open - interest PCR are used to describe the strength and potential turning points of the underlying asset's market [4]. - Pressure and support levels are determined from the strike prices with the largest open interest of call and put options [5]. - Implied volatility is calculated as the arithmetic average of call and put at - the - money options and volume - weighted average [6]. Group 4: Option Strategies and Recommendations Non - Ferrous Metals - **Copper Options**: Directional strategy is to construct a bull call spread; volatility strategy is to construct a short - volatility option seller portfolio; spot hedging strategy is to hold spot long + buy put + sell out - of - the - money call [8]. - **Aluminum/Alumina Options**: Directional strategy is a bull call spread; volatility strategy is to sell a bullish call + put option combination; spot hedging strategy is a collar strategy [9]. - **Zinc/Pb Options**: Volatility strategy is to sell a neutral call + put option combination; spot hedging strategy is a collar strategy [9]. - **Nickel Options**: Volatility strategy is to sell a bearish call + put option combination; spot risk - hedging strategy is to hold spot long + buy put [10]. - **Tin Options**: Volatility strategy is a short - volatility strategy; spot hedging strategy is a collar strategy [10]. - **Lithium Carbonate Options**: Volatility strategy is to sell a neutral call + put option combination; spot covered strategy is to hold spot long + sell call [11]. Precious Metals - **Gold/Silver Options**: Volatility strategy is to construct a bullish short - volatility option seller portfolio; spot hedging strategy is to hold spot long + buy put + sell out - of - the - money call [12]. Black Metals - **Rebar Options**: Directional strategy is a bull call spread; volatility strategy is to sell a neutral call + put option combination; spot covered strategy is to hold spot long + sell call [13]. - **Iron Ore Options**: Directional strategy is a bull call spread; volatility strategy is to sell a bullish call + put option combination; spot hedging strategy is a collar strategy [13]. - **Ferroalloy Options**: Volatility strategy is a short - volatility strategy [14]. - **Industrial Silicon/Polysilicon Options**: Directional strategy is a bull call spread; volatility strategy is to sell a bullish call + put option combination; spot covered strategy is to hold spot long + sell call [14]. - **Glass Options**: Volatility strategy is to sell a call + put option combination to short volatility; spot hedging strategy is a collar strategy [15].

Group 1 - The domestic commodity futures market closed mostly higher during the night session, with the black series showing a general increase [1] - Coking coal rose by 2.60%, iron ore increased by 1.87%, coking coal gained 1.52%, hot-rolled coil went up by 1.39%, and rebar climbed by 1.36% [1] - In the non-metallic building materials sector, glass increased by 2.54%, while in the chemical products category, rubber rose by 1.19%, and butadiene rubber increased by 1.18% [1] Group 2 - In the oilseed and oil category, soybean meal rose by 0.99%, and soybean oil increased by 0.81% [1] - Energy products generally declined, with fuel oil down by 1.49%, low-sulfur fuel oil decreasing by 0.57%, and LPG falling by 0.48% [1] - In the chemical products sector, asphalt decreased by 0.28%, polypropylene fell by 0.18%, and soybean oil dropped by 0.34% [1]

Report Summary 1. Report Investment Rating No investment rating information is provided in the report. 2. Core Viewpoints - The metal sector is divided into non - ferrous metals, precious metals, and black metals. Different options strategies and suggestions are provided for selected varieties in each sector based on the analysis of underlying market conditions, option factor research, and option strategy recommendations [7]. 3. Summary by Relevant Catalogs 3.1 Futures Market Overview - For various metal options, information such as the latest price, price change, percentage change, trading volume, volume change, open interest, and open interest change of the underlying contracts is presented. For example, the latest price of copper (CU2508) is 78,330, with a decrease of 580 and a decline rate of 0.74% [3]. 3.2 Option Factor - Volume and Open Interest PCR - The volume and open interest PCR data of different metal options are provided, which are used to describe the strength of the option underlying market and the turning point of the underlying market. For instance, the volume PCR of copper is 0.75 with a change of - 0.12, and the open interest PCR is 0.61 with a change of - 0.06 [4]. 3.3 Option Factor - Pressure and Support Levels - The pressure and support levels of different metal options are determined from the perspective of the strike prices with the largest open interest of call and put options. For example, the pressure level of copper is 82,000 and the support level is 78,000 [5]. 3.4 Option Factor - Implied Volatility - The implied volatility data of different metal options are provided, including at - the - money implied volatility, weighted implied volatility, and its change. For example, the at - the - money implied volatility of copper is 12.67%, and the weighted implied volatility is 17.79% with a change of 2.24% [6]. 3.5 Strategy and Suggestions - **Non - ferrous Metals** - **Copper Options**: Based on the analysis of copper fundamentals, market conditions, option factors, directional strategies (constructing a bull - spread combination of call options), volatility strategies (constructing a short - volatility seller option combination), and spot long - hedging strategies are proposed [8]. - **Aluminum/Alumina Options**: Analyze the fundamentals and market conditions of aluminum and alumina, and suggest directional strategies (bull - spread combination of call options), volatility strategies (constructing a short - position call + put option combination), and spot long - hedging strategies [9]. - **Zinc/Lead Options**: Provide strategies for zinc and lead options, including volatility strategies (constructing a short - neutral call + put option combination) and spot long - hedging strategies [9]. - **Nickel Options**: Suggest volatility strategies (constructing a short - bearish call + put option combination) and spot long - hedging strategies for nickel options [10]. - **Tin Options**: Propose volatility strategies (short - volatility strategy) and spot long - hedging strategies for tin options [10]. - **Lithium Carbonate Options**: Suggest volatility strategies (constructing a short - neutral call + put option combination) and spot long - covered call strategies for lithium carbonate options [11]. - **Precious Metals** - **Gold/Silver Options**: Analyze the fundamentals and market conditions of gold and silver, and suggest volatility strategies (constructing a long - biased short - volatility option seller combination) and spot long - hedging strategies [12]. - **Black Metals** - **Rebar Options**: Provide volatility strategies (constructing a short - neutral call + put option combination) and spot long - covered call strategies for rebar options [13]. - **Iron Ore Options**: Suggest volatility strategies (constructing a short - bullish call + put option combination) and spot long - hedging strategies for iron ore options [13]. - **Ferroalloy Options**: Propose volatility strategies (short - volatility strategy) for ferroalloy options [14]. - **Industrial Silicon/Polysilicon Options**: Provide volatility strategies (constructing a short - neutral call + put option combination) and spot long - covered call strategies for industrial silicon and polysilicon options [14]. - **Glass Options**: Suggest volatility strategies (constructing a short - volatility call + put option combination) and spot long - hedging strategies for glass options [15].

Core Viewpoint - The domestic commodity futures market experienced a majority of price increases during the night session, particularly in the chemical sector, indicating a positive trend in commodity prices overall [1] Group 1: Chemical Products - The price of 20 rubber increased by 2.91% [1] - Rubber prices rose by 2.28% [1] - Styrene saw an increase of 1.60% [1] - Butadiene rubber rose by 1.59% [1] Group 2: Black Metals - Coking coal prices increased by 2.03% [1] - Coke prices rose by 1.59% [1] - Iron ore saw a price increase of 1.09% [1] Group 3: Non-Metallic Building Materials - Glass prices increased by 1.85% [1] - PVC prices rose by 1.20% [1] Group 4: Agricultural Products - Pulp prices increased by 1.33% [1] Group 5: Oils and Fats - Soybean meal rose by 0.24% [1] - Soybean oil remained stable [1] - Soybean one decreased by 0.10% [1] - Palm oil fell by 0.44% [1] Group 6: Energy Products - LPG prices increased by 0.34% [1] - Low sulfur fuel oil decreased by 0.30% [1] - Fuel oil fell by 0.60% [1]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - For non - ferrous metals showing a volatile decline, construct a seller's neutral volatility strategy [2]. - For the black - series with a gradual range - bound consolidation, it is suitable to construct a seller's option neutral combination strategy [2]. - For precious metals like gold with a high - level consolidation and a weak decline, construct a spot hedging strategy [2]. 3. Summary According to the Directory 3.1 Futures Market Overview - The latest prices, price changes, trading volumes, and open interest changes of various metal futures contracts are presented, including copper, aluminum, zinc, etc. For example, the latest price of copper (CU2508) is 80,030, with a price increase of 550 and a trading volume of 6.13 million lots [3]. 3.2 Option Factors - Volume and Open Interest PCR - The volume and open interest PCR of various metal options are provided, which are used to describe the strength of the option underlying market and the turning point of the underlying market respectively. For instance, the open interest PCR of copper options is 0.67, with a change of - 0.01 [4]. 3.3 Option Factors - Pressure and Support Levels - The pressure and support levels of various metal options are analyzed from the perspective of the maximum open interest of call and put options. For example, the pressure point of copper options is 82,000 and the support point is 78,000 [5]. 3.4 Option Factors - Implied Volatility - The implied volatility of various metal options is presented, including at - the - money implied volatility, weighted implied volatility, and the difference between implied and historical volatility. For example, the at - the - money implied volatility of copper options is 11.20% [6]. 3.5 Strategy and Recommendations for Different Metal Categories 3.5.1 Non - Ferrous Metals - **Copper Options**: The copper market shows a high - level range - bound shock and then an upward breakthrough followed by a continuous decline. Construct a bullish option bull - spread strategy, a short - volatility option combination strategy, and a spot long - hedging strategy [8]. - **Aluminum/Alumina Options**: The aluminum market shows a bullish rise, high - level shock, and then a decline. Construct a bullish option bull - spread strategy, a short - option combination strategy, and a spot collar strategy [9]. - **Zinc/Lead Options**: The zinc market shows a bullish upward and high - level range - bound shock. Construct a short - option combination strategy and a spot collar strategy [9]. - **Nickel Options**: The nickel market shows a weak rebound. Construct a short - option combination strategy with a short bias and a spot long - hedging strategy [10]. - **Tin Options**: The tin market shows a short - term weak shock. Construct a short - volatility strategy and a spot collar strategy [10]. - **Lithium Carbonate Options**: The lithium carbonate market shows an oversold rebound. Construct a short - option combination strategy with a neutral bias and a spot covered - call strategy [11]. 3.5.2 Precious Metals - **Gold/Silver Options**: The gold market shows a short - term weak shock. Construct a short - volatility option seller's combination strategy with a bullish bias and a spot hedging strategy [12]. 3.5.3 Black - Series - **Rebar Options**: The rebar market shows an oversold rebound with strong upward momentum. Construct a short - option combination strategy and a spot covered - call strategy [13]. - **Iron Ore Options**: The iron ore market shows a bullish upward trend. Construct a short - option combination strategy with a bullish bias and a spot collar strategy [13]. - **Ferroalloy Options**: The manganese silicon market shows a weak rebound. Construct a short - volatility strategy [14]. - **Industrial Silicon/Polysilicon Options**: The industrial silicon market shows a rebound and then a range - bound shock. Construct a short - option combination strategy and a spot covered - call strategy [14]. - **Glass Options**: The glass market shows a rebound from a weak bearish trend. Construct a short - volatility option combination strategy and a spot collar strategy [15].

Group 1 - The domestic commodity futures market closed mostly lower during the night session, with significant declines in oilseeds and oils [1] - Soybean meal dropped by 0.51%, soybean oil fell by 0.44%, and palm oil increased by 0.43% [1] - The black series also experienced declines, with rebar down 0.36%, hot-rolled coil down 0.31%, iron ore down 0.27%, and coking coal down 0.24% [1] Group 2 - Chemical products showed mixed results, with asphalt rising by 0.90% and styrene increasing by 0.38%, while ethylene glycol and PVC saw slight declines of 0.07% and 0.10% respectively [1] - Energy products generally increased, with low-sulfur fuel oil up by 1.89%, fuel oil up by 1.05%, and LPG rising by 0.34% [1]

Report Industry Investment Rating No relevant content provided. Report's Core View - The report provides a comprehensive analysis of the metal options market, including the market situation of various metal futures, option factors, and corresponding option strategies and suggestions for different metal sectors such as non - ferrous metals, precious metals, and black metals [2][7]. Summary by Related Catalogs 1. Market Overview of Underlying Futures - The latest prices, price changes, trading volumes, and open interest changes of multiple metal futures such as copper, aluminum, and zinc are presented. For example, the latest price of copper (CU2508) is 80,540, with a decline of 220 and a decrease rate of 0.27% [3]. 2. Option Factors 2.1 Volume - Open Interest PCR - The volume PCR and open - interest PCR of various metal options are given, which are used to describe the strength of the option underlying market and the turning point of the underlying market. For example, the volume PCR of copper options is 0.38, with a change of 0.02, and the open - interest PCR is 0.66, with a change of 0.04 [4]. 2.2 Pressure and Support Levels - The pressure points, support points, and the maximum open interest of call and put options of different metal options are analyzed. For example, the pressure point of copper options is 82,000, and the support point is 77,000 [5]. 2.3 Implied Volatility - The implied volatility data of various metal options, including at - the - money implied volatility, weighted implied volatility, and its changes, are provided. For example, the at - the - money implied volatility of copper options is 13.53, and the weighted implied volatility is 18.71, with a change of - 0.83 [6]. 3. Strategies and Suggestions 3.1 Non - Ferrous Metals - **Copper Options**: Directional strategy is to construct a bull spread combination strategy of call options; volatility strategy is to construct a short - volatility seller option combination strategy; and a spot hedging strategy is also provided [8]. - **Aluminum/Alumina Options**: Directional strategy is a bull spread combination strategy of call options; volatility strategy is to construct a short call + put option combination strategy; and a spot collar strategy is provided [9]. - **Zinc/Lead Options**: Directional strategy is to construct a bull spread combination strategy; volatility strategy is to construct a short neutral call + put option combination strategy; and a spot collar strategy is provided [9]. - **Nickel Options**: Volatility strategy is to construct a short bearish call + put option combination strategy; and a spot long - position hedging strategy is provided [10]. - **Tin Options**: Volatility strategy is a short - volatility strategy; and a spot collar strategy is provided [10]. - **Lithium Carbonate Options**: Volatility strategy is to construct a short neutral call + put option combination strategy; and a spot covered - call strategy is provided [11]. 3.2 Precious Metals - **Gold/Silver Options**: Volatility strategy is to construct a short - volatility option seller combination strategy with a long - bias; and a spot hedging strategy is provided [12]. 3.3 Black Metals - **Rebar Options**: Volatility strategy is to construct a short neutral call + put option combination strategy; and a spot covered - call strategy is provided [13]. - **Iron Ore Options**: Volatility strategy is to construct a short neutral call + put option combination strategy; and a spot long - collar strategy is provided [13]. - **Ferroalloy Options**: Volatility strategy is a short - volatility strategy [14]. - **Industrial Silicon/Polysilicon Options**: Volatility strategy is to construct a short neutral call + put option combination strategy; and a spot covered - call strategy is provided [14]. - **Glass Options**: Volatility strategy is to construct a short - volatility call + put option combination strategy; and a spot long - collar strategy is provided [15].