Group 1 - Jiangsu province implemented a more proactive fiscal policy, focusing on stable growth and improving people's livelihoods, which provided strong support for high-quality development [1] - In the first half of the year, Jiangsu's general public budget revenue reached 583.68 billion yuan, an increase of 1.1%, with tax revenue growing by 2.7% for nine consecutive months [1] - The industrial production growth led to a 7.4% increase in value-added tax, indicating strong internal economic momentum [1] Group 2 - Wuxi Tengma Precision Transmission Co., Ltd. reported a 44% increase in revenue this year, driven by rising orders for products used in humanoid and industrial robots [1] - Jiangsu Lianbo Precision Technology Co., Ltd. is in a rapid development phase, receiving a 1% fiscal subsidy that significantly supports its growth [2] - The provincial government allocated 10 billion yuan for social elderly service system construction and 31.38 billion yuan for employment subsidies, enhancing social welfare [2]

Economic Growth and Structural Adjustment - July economic growth has slowed, primarily driven by policy and seasonal factors, with industrial value-added growth at 5.7%, down 1.1 percentage points from June[8] - Consumer retail sales growth has also decelerated to 3.7%, reflecting diminishing effects of subsidy policies and increased service consumption during the summer[19] - Fixed asset investment growth for January to July is at 1.6%, with July showing a significant decline of 5.3%, marking a further drop from June's -0.1%[25] Production and Investment Insights - High-end manufacturing remains resilient, but overall industrial production faces challenges from extreme weather and external demand decline[7] - Manufacturing investment has turned negative for the first time since mid-2020, with new export orders PMI dropping to 46.1, indicating reduced external demand[26] - Real estate investment has seen a sharp decline, with July's new construction area down 15.4% year-on-year, reflecting ongoing pressures in the housing market[29] Consumer Behavior and Market Dynamics - Online retail sales have increased by 13.5%, driven by new consumption models, while traditional retail sectors like home appliances are experiencing slower growth due to subsidy reductions[21] - The unemployment rate has risen to 5.2%, influenced by seasonal factors as new graduates enter the job market[15] - The real estate market continues to face significant pressure, with sales area and sales value down 7.8% and 14.1% respectively in July, indicating a need for new supportive policies[29]

Macroeconomic Insights - Economic growth in July showed an overall slowdown, with policy-driven sectors performing well due to equipment upgrades, appliance replacements, and major infrastructure projects [3] - Durable goods consumption and infrastructure-related manufacturing industries maintained high growth rates, while extreme weather, high base effects, and declining external demand hindered project construction and production in some sectors [3] - The real estate sector is still in a downturn, indicating that internal recovery momentum is not yet solid [3] - Future economic recovery requires continued and enhanced consumer stimulus policies, optimized funding allocation for infrastructure, and increased support for demand in the real estate market [3] Capital Market Strategy - The shift in valuation logic for the Chinese stock market is moving from economic cycle fluctuations to a decline in discount rates, with expectations for A/H stock indices to reach new highs [5][7] - Institutional changes are crucial for improving the investability of the Chinese stock market and altering societal perceptions of asset value [8][9] - Recent reforms aim to enhance investor returns, improve corporate governance, and encourage share buybacks, which are expected to increase investor confidence and market performance [9][10] - The establishment of a stable market mechanism is seen as a "firewall" that reduces risk perceptions and encourages long-term capital investment [10][11] Hong Kong Market Analysis - The Hong Kong stock market has underperformed since mid-June, influenced by macroeconomic factors such as the Hong Kong dollar's exchange rate and U.S. trade policies [15] - The widening interest rate differential between Hong Kong and the U.S. has led to liquidity tightening, negatively impacting stock performance [15] - The decline in popularity of key sectors and a slowdown in capital inflows have contributed to the weaker performance of the Hong Kong market [16] - Despite recent underperformance, the outlook for the Hong Kong stock market remains positive, with expectations for recovery driven by AI applications and consumer trends [16]

Investment Rating - The investment rating for the steel industry is "Positive" [2] Core Viewpoints - The steel market is currently facing a supply-demand imbalance, but with the implementation of various "stabilization growth" policies, overall steel demand is expected to remain stable or slightly increase [5][12] - The report highlights that the steel industry is likely to benefit from structural investment opportunities, particularly in high-margin special steel companies and leading steel enterprises with strong cost control [5][12] Market Performance - The steel sector experienced a decline of 2.00% this week, underperforming the broader market, while the Shanghai and Shenzhen 300 index rose by 2.37% [12] - Among the steel sub-sectors, special steel fell by 0.92%, long products by 1.44%, and flat products by 3.15% [12] Supply Data - As of August 15, the average daily pig iron production was 2.4066 million tons, a week-on-week increase of 0.34 million tons [25] - The capacity utilization rate for blast furnaces was 90.2%, up by 0.13 percentage points week-on-week [25] - The total production of five major steel products reached 7.601 million tons, an increase of 0.27% week-on-week [25] Demand Data - The consumption of five major steel products was 8.31 million tons, a decrease of 1.74% week-on-week [36] - The transaction volume of construction steel among mainstream traders was 102,000 tons, down by 1.08% week-on-week [36] Inventory Data - Social inventory of five major steel products increased to 9.908 million tons, a week-on-week rise of 2.94% [44] - Factory inventory of five major steel products reached 4.251 million tons, up by 2.97% week-on-week [44] Price Data - The comprehensive index for ordinary steel was 3,566.4 yuan/ton, with a week-on-week increase of 0.10% [50] - The comprehensive index for special steel was 6,638.7 yuan/ton, with a slight week-on-week increase of 0.01% [50] Profitability - The profit per ton for rebar was 121 yuan, down by 23.42% week-on-week [59] - The profit per ton for electric arc furnace construction steel was -68 yuan, a significant decrease of 58.14% week-on-week [59] Raw Material Prices - The spot price index for Australian iron ore (62% Fe) was 774 yuan/ton, with a week-on-week increase of 0.13% [72] - The price of primary metallurgical coke was 1,770 yuan/ton, remaining stable week-on-week [72]

Economic Overview - In July 2025, the industrial added value for large-scale enterprises increased by 5.7% year-on-year and 0.38% month-on-month[3] - The total retail sales of consumer goods grew by 3.7% year-on-year but decreased by 0.14% month-on-month[3] - From January to July, fixed asset investment (excluding rural households) rose by 1.6% year-on-year[3] Investment Trends - Both infrastructure and manufacturing investment growth turned negative in July, with broad infrastructure down by 1.9% and narrow infrastructure down by 5.1%[4][8] - Manufacturing investment growth fell from 5.1% in June to -0.3% in July, indicating a significant decline in investment momentum[6][23] Consumption Insights - The decline in retail sales growth to 3.7% in July was primarily driven by a decrease in automobile sales and weak demand in other categories[8][9] - The effectiveness of the "trade-in" policy for stimulating consumption has weakened, with significant drops in categories like automobiles and home appliances[9][34] Employment Concerns - The urban surveyed unemployment rate increased, indicating a potential rise in youth unemployment, particularly among the 16-24 age group[4][15] - The number of college graduates in 2025 is projected to be 12.22 million, higher than the previous year's 11.79 million, raising concerns about job market saturation[4] Risks and Challenges - The current economic environment shows signs of "production stability, weak consumption, and weak investment," posing risks for the second half of the year[3] - External shocks and insufficient effective demand remain significant challenges for economic performance in the latter half of 2025[3][10]

Group 1 - The provincial government emphasizes the importance of industrial projects and consumer stimulation to support economic growth [1][2] - The relocation and new construction project of COFCO Coca-Cola in Xi'an is highlighted, with a focus on ensuring timely production and operation [1] - The e-commerce company Vipshop is encouraged to innovate marketing strategies and enhance platform services to improve customer experience [1] - JD's "Asia No. 1" smart logistics park in Xi'an is expected to enhance logistics efficiency and support the distribution of Shaanxi products nationwide and globally [1] Group 2 - Xi'an is tasked with a significant role in the province's economic development, focusing on stabilizing growth and enhancing policy implementation [2] - The government aims to attract social capital investment and prioritize industrial projects, improving project management and lifecycle services [2] - Efforts will be made to boost consumer spending through diverse promotional activities and to explore opportunities in cultural tourism, event economy, and service consumption [2]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The stock - bond seesaw is obvious, and treasury bond futures closed down across the board. Affected by the strong stock market, the rising risk appetite suppresses the bond market. Meanwhile, the strengthened expectation of the Fed's interest rate cut in September and the increasing global trade uncertainty add to the uncertainty of foreign capital inflows. Overall, the bond market fluctuates between the expectations of stable growth and monetary easing. Short - term attention should be paid to policy signals at the end of the month [1][3]. - For trading strategies, in the unilateral trading, the price of treasury bond futures fluctuates, and it is recommended to short at high levels for the 2509 contract. In the arbitrage trading, attention should be paid to the decline of the basis of TF2509. In the hedging trading, there is medium - term adjustment pressure, and short - position holders can use far - month contracts for appropriate hedging [4]. 3. Summary by Directory 3.1 Interest Rate Pricing Tracking Indicators - **Price Indicators**: China's CPI (monthly) has a 0.00% month - on - month change and a 0.10% year - on - year change; China's PPI (monthly) has a - 0.10% month - on - month change and a - 2.30% year - on - year change [8]. - **Monthly Economic Indicators**: The social financing scale is 408.34 trillion yuan, with a month - on - month increase of 2.74 trillion yuan (0.68%); M2 year - on - year growth is 7.30%, with a 0.20% (2.82%) month - on - month change; the manufacturing PMI is 50.10%, with a - 0.20% (- 0.40%) month - on - month change [8]. - **Daily Economic Indicators**: The US dollar index is 109.41, with a 0.47 (0.43%) day - on - day change; the offshore US dollar - RMB exchange rate is 7.324, with a - 0.019 (- 0.25%) day - on - day change; SHIBOR 7 - day is 2.01, with a - 0.03 (- 1.28%) day - on - day change; DR007 is 2.12, with a - 0.21 (- 9.18%) day - on - day change; R007 is 1.94, with a 0.12 (6.52%) day - on - day change; the yield of inter - bank certificates of deposit (AAA) for 3M is 1.89, with a 0.00 (0.09%) day - on - day change; the AA - AAA credit spread (1Y) is 0.15, with a - 0.01 (0.09%) day - on - day change [8]. 3.2 Treasury Bonds and Treasury Bond Futures Market Overview - Multiple charts are provided, including the closing price trend of the main continuous contracts of treasury bond futures, the price change rate of each variety of treasury bond futures, the precipitation fund trend of each variety of treasury bond futures, the position - holding ratio of each variety of treasury bond futures, the net position - holding ratio of the top 20 in each variety of treasury bond futures, the long - short position - holding ratio of the top 20 in each variety of treasury bond futures, the spread between policy - bank bonds and treasury bonds, and the issuance situation of treasury bonds [11][12][15]. 3.3 Money Market Fundamentals - Charts show the trend of Shibor interest rates, the maturity yield trend of inter - bank certificates of deposit (AAA), the transaction statistics of inter - bank pledged repurchase, and the issuance situation of local government bonds [24][25]. 3.4 Spread Overview - Multiple charts present the inter - term spread trend of each variety of treasury bond futures, the term spread of spot bonds and the cross - variety spread of futures (4*TS - T, 2*TS - TF, 2*TF - T, 3*T - TL), and the spread between spot bond spreads and futures spreads (2*TS - 3*TF + T) [28][35][36]. 3.5 Two - Year Treasury Bond Futures - Charts show the implied interest rate of the TS main contract and the maturity yield of treasury bonds, the IRR of the TS main contract and the fund interest rate, the basis trend of the TS main contract in the past three years, and the net basis trend of the TS main contract in the past three years [38][41][51]. 3.6 Five - Year Treasury Bond Futures - Charts show the implied interest rate of the TF main contract and the maturity yield of treasury bonds, the IRR of the TF main contract and the fund interest rate, the basis trend of the TF main contract in the past three years, and the net basis trend of the TF main contract in the past three years [47][48][53]. 3.7 Ten - Year Treasury Bond Futures - Charts show the implied interest rate of the T main contract and the maturity yield of treasury bonds, the IRR of the T main contract and the fund interest rate, the basis trend of the T main contract in the past three years, and the net basis trend of the T main contract in the past three years [56][59]. 3.8 Thirty - Year Treasury Bond Futures - Charts show the implied interest rate of the TL main contract and the maturity yield of treasury bonds, the IRR of the TL main contract and the fund interest rate, the basis trend of the TL main contract in the past three years, and the net basis trend of the TL main contract in the past three years [64][66][70].

Market Performance Review - The A-share market experienced a volatile upward trend, reaching new highs, with the CSI 1000 index rising by 2.11%, outperforming other major indices such as the CSI A50 and ChiNext, which increased by 0.64% and 0.49% respectively [12][13] - There was a significant reversal in market style, with cyclical stocks rebounding strongly while the previously resilient consumer style lagged behind [12][13] - All market capitalization styles saw gains, with mid-cap and small-cap indices performing notably better than large-cap indices [12][13] - The performance of core assets and leading growth stocks showed divergence, with the "Ning" combination slightly increasing by 0.07% and the "Mao" index rising by 0.89% [12][13] Industry Analysis - The market's upward movement was primarily driven by event-driven thematic trading, with the defense and military industry leading with a 5.93% increase, followed by significant gains in non-ferrous metals and machinery [4][13] - The defense sector's rise was fueled by China Shipbuilding's announcement on August 5 regarding a stock swap merger with China State Shipbuilding Corporation, which sparked expectations of large-scale restructuring among military-listed companies [4][13] - The only sectors that saw declines were pharmaceuticals, computers, retail, and social services [4][13] Future Outlook and Investment Views - The report emphasizes the importance of both rhythm and direction during the current gap between policy and performance, noting that the recent Central Political Bureau meeting did not indicate large-scale stimulus plans, and the focus will shift more towards demand recovery rather than supply-side reductions [29][30] - The current market rally, which began at the end of June, can be understood as a two-phase structure driven by bank dividends and the transition from "anti-involution" themes, but the potential for further gains may be limited as the appeal of bank dividends diminishes [29][30] - The report suggests a return to growth trading, with individual stock alpha logic taking precedence over industry beta logic, highlighting opportunities for valuation recovery in technology growth sectors such as AI applications, computing power chains, and optical modules [30]

1. Overall Investment Ratings - The report does not provide an industry - wide investment rating. 2. Core Views Steel - The black futures market weakened recently. In the short - term, the steel inventory pressure is not significant, but the off - season demand has a low acceptance of high prices. The main contract is approaching the roll - over period, and the price of the October contract is expected to fluctuate at high levels. It was previously recommended to buy on dips, and existing long positions can be held. However, due to limited terminal demand, chasing long positions should be done with caution [1]. Iron Ore - The 2509 iron ore contract showed a fluctuating and slightly stronger trend last week. In the future, the average daily hot metal production in August will remain high but is expected to slightly decline to around 2.36 million tons per day. Steel prices may rise due to production restrictions, which will reduce iron ore demand but provide valuation support. It is recommended to go long on the 2601 contract on dips and conduct an arbitrage strategy of going long on coking coal 01 and short on iron ore 01 [4]. Coke - The coke futures rebounded from the bottom last week, and the price fluctuated sharply. The fifth round of price increase has been implemented, and there may be further increases. Supply is difficult to increase due to some enterprises' losses, while demand from blast furnaces provides support. It is recommended to go long on the 2601 coke contract on dips and conduct a 9 - 1 reverse arbitrage [6]. Coking Coal - The coking coal futures rebounded from the bottom last week, and the spot market is generally stable and slightly stronger. The supply is tight, and the demand for replenishment from downstream is continuous. It is recommended to go long on the 2601 coking coal contract on dips and conduct a 9 - 1 reverse arbitrage [6]. 3. Summary by Directory Steel Prices and Spreads - The prices of most steel products decreased slightly. For example, the spot price of rebar in East China dropped from 3370 yuan/ton to 3360 yuan/ton, and the 05 contract price of hot - rolled coil declined from 3460 yuan/ton to 3449 yuan/ton [1]. Cost and Profit - The cost of some steel - making processes increased, such as the cost of Jiangsu converter rebar rising by 6 yuan/ton to 3175 yuan/ton. The profits of most regions and varieties increased, like the East China hot - rolled coil profit rising by 5 yuan/ton to 248 yuan/ton [1]. Production - The average daily hot metal production decreased slightly by 0.2 tons to 240.5 tons, a decline of 0.1%. The production of five major steel products increased by 1.8 tons to 869.2 tons, a rise of 0.2%. The rebar production increased significantly by 10.1 tons to 221.2 tons, a growth of 4.8%, while the hot - rolled coil production decreased by 7.9 tons to 314.9 tons, a decline of 2.4% [1]. Inventory - The inventory of five major steel products increased by 23.5 tons to 1375.4 tons, a rise of 1.7%. The rebar inventory rose by 10.4 tons to 556.7 tons, a growth of 1.9%, and the hot - rolled coil inventory increased by 8.7 tons to 356.6 tons, a rise of 2.5% [1]. Transaction and Demand - The average daily building materials trading volume decreased by 0.9 tons to 9.7 tons, a decline of 8.7%. The apparent demand for five major steel products decreased by 6.3 tons to 845.7 tons, a drop of 0.7%. The apparent demand for rebar increased by 7.4 tons to 210.8 tons, a growth of 3.6%, while the apparent demand for hot - rolled coil decreased by 13.8 tons to 306.2 tons, a decline of 4.3% [1]. Iron Ore Prices and Spreads - The prices of most iron ore varieties decreased slightly. For example, the warehouse - receipt cost of PB powder dropped from 819.5 yuan/ton to 816.2 yuan/ton, and the spot price of PB powder at Rizhao Port declined from 773.0 yuan/ton to 770.0 yuan/ton [4]. Supply - The 45 - port arrival volume increased by 267.3 tons to 2507.8 tons, a rise of 11.9%, while the global shipment volume decreased by 139.1 tons to 3061.8 tons, a decline of 4.3%. The national monthly import volume increased by 782.0 tons to 10594.8 tons, a growth of 8.0% [4]. Demand - The average daily hot metal production of 247 steel mills decreased by 0.4 tons to 240.3 tons, a decline of 0.2%. The 45 - port average daily desulfurization volume increased by 19.1 tons to 321.9 tons, a rise of 6.3%. The national monthly pig iron production decreased by 220.9 tons to 7190.5 tons, a decline of 3.0%, and the national monthly crude steel production decreased by 336.1 tons to 8318.4 tons, a decline of 3.9% [4]. Inventory - The 45 - port inventory decreased by 28.7 tons to 13712.27 tons, a decline of 0.2%. The imported ore inventory of 247 steel mills increased by 1.3 tons to 9013.3 tons, a rise of 0.0%. The inventory available days of 64 steel mills decreased by 1.0 days to 20.0 days, a decline of 4.8% [4]. Coke Prices and Spreads - The prices of most coke varieties were stable or slightly decreased. For example, the 09 contract price of coke decreased by 14 yuan/ton to 1668 yuan/ton, and the 01 contract price decreased by 10 yuan/ton to 1734 yuan/ton [6]. Supply - The average daily coke production of all - sample coking plants increased by 0.3 tons to 65.1 tons, a rise of 0.4%, while the average daily production of 247 steel mills decreased by 0.2 tons to 46.8 tons, a decline of 0.44% [6]. Demand - The average daily hot metal production of 247 steel mills decreased by 0.4 tons to 240.3 tons, a decline of 0.2% [6]. Inventory - The total coke inventory decreased by 8.3 tons to 907.2 tons, a decline of 0.9%. The coke inventory of all - sample coking plants decreased by 3.9 tons to 69.7 tons, a decline of 5.34%, and the coke inventory of 247 steel mills decreased by 7.4 tons to 619.3 tons [6]. Coking Coal Prices and Spreads - The prices of most coking coal varieties were stable or slightly increased. For example, the price of Mongolian coking coal warehouse - receipt increased by 5 yuan/ton to 1139 yuan/ton, and the 09 contract price of coking coal decreased by 18 yuan/ton to 1070 yuan/ton [6]. Supply - The raw coal production of sample coal mines decreased by 9.7 tons to 859.0 tons, a decline of 1.1%, and the clean coal production decreased by 5.1 tons to 439.0 tons, a decline of 1.1% [6]. Demand - The demand for coking coal is supported by the stable coking plant operation and the high - level but slightly declining hot metal production [6]. Inventory - The clean coal inventory of Fenwei coal mines decreased by 6.8 tons to 112.0 tons, a decline of 5.7%. The coking coal inventory of all - sample coking plants decreased by 4.8 tons to 987.9 tons, a decline of 0.5%, and the coking coal inventory of 247 steel mills increased by 4.9 tons to 808.7 tons, a rise of 0.6% [6].

1. Report Industry Investment Ratings - Iron ore: High - level oscillation [2] - Coking coal and coke: Oscillating upward [2] - Rolled steel and rebar: High - level oscillation [2] - Glass: Adjustment [2] - Soda ash: Adjustment [2] - CSI 50 Index: Rebound [3] - CSI 300 Index: Oscillation [3] - CSI 500 Index: Oscillation [3] - CSI 1000 Index: Upward movement [3] - 2 - year Treasury bond: Oscillation [3] - 5 - year Treasury bond: Oscillation [3] - 10 - year Treasury bond: Upward movement [3] - Gold: High - level oscillation [3] - Silver: High - level oscillation [4] - Pulp: Consolidation [4] - Logs: Oscillation [4] - Soybean oil: Oscillating upward [4] - Palm oil: Oscillating upward [4] - Rapeseed oil: Oscillating upward [4] - Soybean meal: Strong - side oscillation [6] - Rapeseed meal: Strong - side oscillation [6] - Soybean No. 2: Strong - side oscillation [6] - Soybean No. 1: Strong - side oscillation [6] - Live pigs: Weak - side oscillation [6] - Rubber: Oscillation [6] - PX: Wait - and - see [8] - PTA: Wait - and - see [8] - MEG: Wait - and - see [8] - PR: Wait - and - see [8] - PF: Wait - and - see [12] 2. Core Views of the Report - In the black industry, short - term steel industry growth expectations still exist. There are opportunities in the contract operation of going long on RB2601 and shorting I2601. Attention should be paid to policy implementation and off - season demand. In the financial market, the market has rebounded continuously, and it is recommended to hold long positions in stock index futures lightly and long positions in Treasury bonds lightly. For precious metals, the logic driving the gold price increase has not completely reversed, and short - term factors may cause fluctuations. In the agricultural and light industrial products markets, different products have different trends based on their supply - demand fundamentals and external factors [2][3][4]. 3. Summary by Related Catalogs Black Industry - **Iron ore**: Short - term manufacturing recovery is interrupted, and policy expectations are falsified. Supply increases slightly, and steel mills' production drive is strong. There are production - reduction expectations in the later period. Consider the operation of going long on RB2601 and shorting I2601 [2]. - **Coking coal and coke**: Coal mine over - production inspections tighten supply, and transportation is disrupted. The market is in a slightly tight supply - demand state, and prices are likely to rise [2]. - **Rolled steel and rebar**: Tangshan's independent steel - rolling enterprises' production restrictions are beneficial to finished products. Demand is in the off - season, and inventory may accumulate. Consider the operation of going long on RB2601 and shorting I2601 [2]. - **Glass**: The market's speculation sentiment cools down, and the demand is difficult to recover significantly. It is in the adjustment stage [2]. - **Soda ash**: In the adjustment stage, with the market's trading logic returning to the fundamentals [2]. Financial Market - **Stock index futures/options**: The market has rebounded, and risk appetite has improved. It is recommended to hold long positions in stock index futures lightly [3]. - **Treasury bonds**: Market interest rates have rebounded, and Treasury bond prices have fallen. Hold long positions in Treasury bonds lightly [3]. - **Gold and silver**: The gold - pricing mechanism is changing. The logic of the gold price increase has not reversed. Short - term factors such as employment data and tariff policies affect the price. Pay attention to the latest CPI data [3][4]. Agricultural and Light Industrial Products Markets - **Pulp**: The supply - demand pattern is weak, and the price is expected to consolidate [4]. - **Logs**: Demand has increased slightly, supply pressure is not large, and the price is expected to oscillate [4]. - **Oils and fats**: Supported by raw material costs, external markets, and demand recovery, they are expected to oscillate upward. Pay attention to weather and production - sales conditions [4]. - **Meal products**: Supply is sufficient in the short term, and prices are under pressure. In the long term, there are some supporting factors. They are expected to oscillate strongly [6]. - **Live pigs**: Supply is increasing, and consumption is restricted by high temperatures. The price is expected to decline slightly [6]. - **Rubber**: The supply - demand gap has narrowed. With the improvement of supply - side factors, the price is expected to be strong in the short term [6][8]. - **PX, PTA, MEG, PR, PF**: These products are in a state of wait - and - see, with their prices mainly affected by cost and supply - demand changes [8][12].