Report Industry Investment Rating - The investment view on butadiene rubber is a bearish oscillation, indicating that the price of butadiene rubber is expected to fluctuate at a low level in the short term [4]. Core View of the Report - The sentiment has declined, and there are negative factors on the cost side. The price of butadiene rubber (BR) is oscillating at a low level. The supply of butadiene rubber is expected to increase in August, while the demand shows a neutral trend. The inventory and basis show a positive trend, and the profit and geopolitical - macro factors are negative [4]. Summary According to Relevant Catalogs Market Review - This week, the price of high - cis butadiene rubber of Sinopec Chemical Sales has been reduced by 400 yuan/ton in total, and that of major sales companies of PetroChina has been reduced by 100 yuan/ton in total. As of July 24, 2025, the mainstream ex - factory price of high - cis butadiene rubber in China is between 11,800 and 12,100 yuan/ton. The market sentiment has changed, and the prices of butadiene rubber, raw material butadiene, and related natural rubber have gradually declined [7]. Supply and Demand Analysis Supply - Last week, the domestic butadiene production was 1.034 million tons, with a capacity utilization rate of 69.97%. The production of high - cis butadiene rubber was 910,000 tons, with a capacity utilization rate of 72.46%. Some butadiene devices were shut down or under maintenance, and the production of butadiene rubber is expected to continue to increase in August [4]. Demand - For semi - steel tires, the replacement market's sales performance has continued the weak trend of last week, and the terminal demand has not improved significantly. For all - steel tires, the market transactions have increased slightly compared with last week, and some brands may raise prices next month [4]. Inventory - Last week, the butadiene port inventory was 104,000 tons, a month - on - month decrease of 33.76%. The inventory of high - cis butadiene rubber enterprises + traders was 31,320 tons, a month - on - month decrease of 3.09%. The overall inventory of sample enterprises has limited fluctuations [4]. Basis - The basis of butadiene rubber in North China is - 55 yuan/ton, in East China is 45 yuan/ton, and in South China is 95 yuan/ton. The futures price is higher than the spot price [4]. Spread/Price Ratio - The RU - BR spread is 2,855 yuan/ton (a decrease of 9.72%), the NR - BR spread is - 2,044 yuan/ton (a decrease of 20.44%), and the BR - SC price ratio is 0.94% [4]. Profit - The production gross profit of butadiene by oxidative dehydrogenation is 176 yuan/ton, and that by C4 extraction is 1,988 yuan/ton. The production gross profit of butadiene rubber is - 176 yuan/ton, and the gross profit margin is - 1.47% [4]. Geopolitical and Macroeconomic Factors - The fundamentals of crude oil are continuously loose, the demand in the refined oil market is weak, and the international crude oil price is oscillating downward. The market's optimistic sentiment towards the "anti - involution" policy has weakened, and the premium of the coal chemical and new energy chains has been given back. Trump signed an executive order to impose "reciprocal tariffs" on multiple countries and regions, but the market generally believes that China - US tariffs may ease [4]. Device Information - In 2025, many refineries in China have carried out or planned to carry out device overhauls, including major state - owned refineries and local refineries. Some butadiene and butadiene rubber production devices are also in a state of overhaul or shutdown [12][13]. Price Trend Charts - The report provides various price trend charts, including the price trends of butadiene rubber, butadiene, and other related products, as well as the seasonal charts of prices, production, consumption, and inventory [15][21][32]. Trading Strategy - Unilateral trading: Oscillation; Arbitrage trading: Pay attention to going long on BR and short on NR/RU. Also, pay attention to downstream demand, cost changes, device overhauls, and geopolitical factors [4].

Core Viewpoint - The successful test flight of China's self-developed 2-ton electric vertical take-off and landing aircraft "Kairiou" marks a significant advancement in low-altitude logistics applications, particularly in maritime supply scenarios [1] Group 1: Technological Innovation - The "Kairiou" aircraft successfully transported fresh fruits and emergency medical supplies from a land take-off point in Shenzhen to an offshore oil and gas platform located 150 kilometers from the Shenzhen coastline [1] - The flight took 58 minutes, demonstrating the aircraft's capability in cross-sea logistics [1] Group 2: Industry Impact - This breakthrough not only innovates the maritime supply model but also highlights the potential of low-altitude economic technologies to empower traditional energy industries [1] - The integration of innovative aviation technology, mature operational experience, and real maritime operational needs creates a closed-loop application for low-altitude logistics [1]

Core Insights - The successful launch of the Dongfang 13-3 area development project marks a significant breakthrough for China in offshore complex oil and gas resource development, enhancing national energy security [1][2] Group 1: Project Overview - The Dongfang 13-3 area is located over 110 kilometers from Dongfang City in the Yinggehai sea area, with an average operational water depth of approximately 67 meters [1] - The project includes the installation of two new subsea pipelines and one subsea cable, improving the interconnectivity of the subsea natural gas pipeline network around Hainan Island [1] Group 2: Technological Advancements - The project team utilized past successful experiences in offshore high-temperature and high-pressure gas field drilling to develop drilling fluids tailored to the geological characteristics, achieving a record for the length of high-temperature and high-pressure well operations in China [1] - The new platform is an unmanned wellhead platform that incorporates various digital and intelligent technologies, enabling remote-controlled production [2]

Group 1: Industry Overview - The domestic electric vertical takeoff and landing (eVTOL) aircraft industry is experiencing unprecedented growth opportunities, driven by technological advancements and expanding application scenarios in low-altitude logistics [1] - The low-altitude economy is projected to reshape human transportation with a compound annual growth rate (CAGR) of 62%, potentially creating a trillion-dollar market over the next two decades [2] - By 2025, the market size of China's low-altitude economy is expected to reach 1.5 trillion yuan, with a forecast of 3.5 trillion yuan by 2035 [4] Group 2: Key Developments - China's first successful eVTOL transport flight to an offshore oil platform was completed, showcasing the operational advantages of eVTOLs over traditional transport methods [1] - A significant overseas order for 500 eVTOLs worth $1.75 billion was placed by Pan Pacific with Volant, marking the largest overseas order in China's eVTOL sector [2] - Shenzhen aims to establish itself as the "global low-altitude economy capital," targeting a low-altitude economic output of over 130 billion yuan by the end of 2026 [3] Group 3: Infrastructure and Investment - Shenzhen's plan includes the construction of over 1,200 low-altitude takeoff and landing points and the opening of more than 1,000 low-altitude commercial flight routes by 2026 [3] - The low-altitude infrastructure market is expected to see an investment increment of approximately 150 billion yuan by 2025, assuming a 15% infrastructure share of the low-altitude economy [4] - Over 84,000 low-altitude economy-related enterprises are currently registered in China, with about 12,000 new registrations in 2025 alone [4] Group 4: Company Highlights - AVIC (Aviation Industry Corporation of China) is a key player in the aviation high-tech sector, focusing on military and civilian applications, with ongoing major asset restructuring [6] - ZTE Corporation is actively involved in low-altitude sensing projects across 25 provinces, covering logistics and low-altitude safety applications [6] - GAC Group has completed numerous patent applications for flying cars and plans to initiate demonstration operations in 2025, aiming for a comprehensive smart transportation service by 2027 [7]

Core Insights - The Dongfang 13-3 area project has officially commenced production, marking a significant advancement in China's offshore oil and gas resource development, enhancing national energy security and promoting the development of new marine energy productivity [1] Project Overview - The Dongfang 13-3 area project is located in the Yinggehai sea area south of Hainan Island, characterized by high temperature, high pressure, and low permeability gas reservoirs, making economic development challenging [1] - The project team deployed six efficient development wells and utilized advanced wellbore designs such as long horizontal wells and multi-branch wells to enhance single well productivity [1] Technological Innovations - The project employed pressure-controlled drilling technology for efficient drilling operations and introduced a "land-based vertical construction + offshore hoisting" model, creating a standardized technical system to reduce construction costs [1] - A new unmanned wellhead platform integrates digital technologies such as smart lighting, intelligent inspection, and remote control, enabling fully remote production [1] Infrastructure Development - The project includes the construction of two subsea pipelines and one cable, facilitating interconnectivity of major gas fields in the Hainan sea area, which enhances the reliability of the underwater energy transportation network around Hainan Island [1]

Core Insights - China National Offshore Oil Corporation (CNOOC), CITIC Offshore Helicopter, and Fengfei Aviation announced the successful flight of the domestically developed 2-ton electric vertical takeoff and landing aircraft (eVTOL) "Kairuiou," marking the world's first offshore oil platform material transport flight [1][2] Group 1: Technological Breakthrough - The successful test flight involved transporting fresh fruits and emergency medical supplies from a land point in Shenzhen to the Huizhou 19-3 platform, located 150 kilometers offshore, completing the journey in 58 minutes [1] - The "Kairuiou" eVTOL is the first in the world to receive a type certificate, production license, and individual aircraft airworthiness certificate, showcasing significant advancements in aviation technology [1][2] Group 2: Operational Advantages - Traditional transportation methods for offshore oil platforms in the South China Sea relied on ships, taking approximately 10 hours for a one-way trip, which is inadequate for urgent material dispatch and emergency support [1] - The eVTOL offers significant advantages over traditional methods, including lower operational costs, faster response times, environmental benefits, comfort, and suitability for limited takeoff and landing spaces [1] Group 3: Technical Specifications - The "Kairuiou" features a composite wing design, with a range of 200 kilometers, a maximum speed of 200 kilometers per hour, and a payload capacity of 400 kilograms [2] - The aircraft successfully completed critical tests, including vertical takeoff and landing, hovering, and long-distance over-sea flight, validating its technical feasibility and operational reliability in the marine oil industry [2]

Investment Rating - The report maintains a positive outlook on the polyester industry, particularly for polyester filament yarn, with expectations for improved profitability during the peak season [4][6][19]. Core Insights - The profitability of polyester filament yarn has shown signs of improvement since late July, following a period of weak demand due to export tariffs and seasonal factors [6][7]. - The report highlights that the current inventory pressure is primarily concentrated in the downstream textile sector, with downstream fabric inventory at a high of 30.57 days and filament raw material inventory at a low of 9.85 days [14][15]. - The upstream oil sector is experiencing rising oil prices, with Brent crude oil futures closing at $69.67 per barrel, reflecting a 1.8% increase week-on-week [23][24]. - The refining sector is seeing mixed results, with overseas refined oil crack spreads increasing, while olefin price spreads show variability [54][56]. Summary by Sections Polyester Sector - Polyester filament yarn profitability is gradually improving, with price spreads for POY, FDY, and DTY reaching 1211, 1516, and 1200 CNY/ton respectively as of August 1 [7][19]. - The overall operating rate for polyester filament yarn remains around 90%, while downstream textile enterprises are operating at a low of 50.4% [15][19]. Upstream Sector - Brent crude oil prices have increased, with a week-on-week rise of 1.8%, and WTI prices up by 3.33% [23][24]. - The report notes a decrease in the number of active drilling rigs in the U.S., with a total of 540 rigs as of August 1, down by 2 from the previous week [34]. Refining Sector - The report indicates that the Singapore refining margin for major products has increased to $15.48 per barrel, while domestic refining margins remain at lower levels [54][56]. - The report suggests that refining profitability may improve as economic recovery progresses, despite current low margins [54][56]. Investment Recommendations - The report recommends focusing on leading companies in the polyester sector such as Tongkun Co. and Wankai New Materials, as well as high-quality refining companies like Hengli Petrochemical and Sinopec [19].

Core Insights - China's independently developed 2-ton electric vertical takeoff and landing aircraft (eVTOL), the "Kai Rui Ou," successfully completed the world's first material transport flight to an offshore oil platform, marking a significant advancement in maritime logistics [1][3] Group 1: Technological Innovation - The flight was a collaborative effort between China National Offshore Oil Corporation (CNOOC), CITIC Offshore Helicopter, and Fengfei Aviation [3] - The "Kai Rui Ou" is the world's first eVTOL to receive a type certificate, production license, and individual airworthiness certificate [3] Group 2: Operational Details - The aircraft transported fresh fruits and emergency medical supplies, taking off from a land point in Shenzhen and landing on the Huizhou 19-3 platform, 150 kilometers from the Shenzhen coastline, after a 58-minute flight [3] - The eVTOL has a range of 200 kilometers, a maximum speed of 200 kilometers per hour, and a payload capacity of 400 kilograms [3] Group 3: Advantages Over Traditional Methods - Compared to traditional transportation methods relying on ships and helicopters, eVTOLs offer significant advantages in operational costs, response speed, environmental impact, comfort, and adaptability to limited takeoff and landing spaces [3]

Group 1 - The core achievement is the successful flight of China's self-developed 2-ton electric vertical takeoff and landing aircraft (eVTOL) "Kai Rui Ou," marking the first global offshore oil platform material transport flight [1][3] - The flight was a collaboration between China National Offshore Oil Corporation (CNOOC), CITIC Offshore Helicopter, and Fengfei Aviation, demonstrating a significant advancement in offshore logistics [1][3] - The eVTOL "Kai Rui Ou" took off from a land point in Shenzhen, flew for 58 minutes, and landed on the Huizhou 19-3 platform, located 150 kilometers from the Shenzhen coastline, successfully delivering fresh fruits and emergency medical supplies [3] Group 2 - Compared to traditional transportation methods relying on ships and helicopters, eVTOL offers significant advantages in operational costs, response speed, environmental impact, comfort, and adaptability to limited takeoff and landing spaces [3] - The "Kai Rui Ou" features a composite wing design, with a range of 200 kilometers, a maximum speed of 200 kilometers per hour, and a payload capacity of 400 kilograms [3]

Core Insights - The successful completion of the world's first offshore oil platform material transport flight using a 2-ton eVTOL aircraft, the Kairuiou, marks a significant milestone for the company and the industry [1][3] - This breakthrough innovates the logistics model for offshore material supply and represents a key step in low-altitude logistics applications in China [3] Company Developments - The flight was a collaborative effort between Peak Flying, China National Offshore Oil Corporation (CNOOC), and CITIC Offshore Helicopter [1] - The Kairuiou transported fresh fruits and emergency medical supplies from a land takeoff point in Shenzhen to the Huizhou 19-3 platform, located 150 kilometers from the Shenzhen coastline, completing the journey in 58 minutes [1] Industry Impact - Traditionally, CNOOC relied on maritime transport for offshore oil platform material delivery, which took approximately 10 hours for a one-way trip, making it challenging to meet urgent supply needs [3] - The eVTOL aircraft offers significant advantages over traditional transport methods, including lower operational costs, faster response times, environmental benefits, comfort, and suitability for limited takeoff and landing spaces [3] - The trial flight established a closed-loop model of "research + operation + scenario" for low-altitude applications, enabling long-distance emergency material transport, offshore facility inspections, and responses to fishing vessel disturbances [3]