Investment Rating - The industry investment rating is "Overweight" [1] Core Insights - The report highlights a recovery in the price of photovoltaic silicon wafers, indicating a positive trend in the solar energy sector. Additionally, major companies such as Mitsui Chemicals are consolidating their ethylene businesses, which may enhance operational efficiencies [1][34]. Summary by Sections Industry Performance - The chemical sector ranked 7th in overall performance for the week of December 22-26, 2025, with a gain of 4.23%. This performance outpaced the Shanghai Composite Index by 2.35 percentage points [3][20]. Key Industry Trends - The report notes a continued divergence in the chemical industry’s prosperity, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4][5]. Synthetic Biology - The report emphasizes the arrival of a pivotal moment for synthetic biology, driven by energy structure adjustments. Traditional chemical companies are expected to face competition based on energy consumption and carbon tax costs. Companies that leverage green energy and scale advantages are likely to thrive [5]. Refrigerants - The upcoming quota policy for third-generation refrigerants is expected to lead to a high-growth cycle. The supply of second-generation refrigerants is being reduced, while demand remains stable due to market expansions in heat pumps and cold chains [6]. Electronic Specialty Gases - The electronic specialty gas market is characterized by high technical barriers and value addition. The domestic market is facing a mismatch between rapid upgrades in wafer manufacturing and insufficient high-end electronic specialty gas capacity, presenting opportunities for domestic replacements [7][8]. Light Hydrocarbon Chemicals - The trend towards light raw materials in the global olefin industry is highlighted, with a shift from heavy naphtha to lighter alkanes like ethane and propane. This transition is expected to enhance production efficiency and align with global carbon neutrality goals [8]. COC Polymers - The report discusses the accelerated industrialization of COC/COP materials in China, driven by domestic companies achieving breakthroughs and the increasing demand from downstream industries [9]. Potash Fertilizers - Potash fertilizer prices are anticipated to rebound as major producers reduce output, alleviating inventory pressures. The report suggests that the market is entering a destocking phase, which could lead to price stabilization [10]. MDI Market - The MDI market is characterized by oligopolistic supply dynamics, with major players controlling over 90% of global capacity. Despite current price pressures, the long-term outlook remains positive as demand recovers [11].

（2）配额政策落地在即，三代制冷剂有望进入高景气周期。24年起三代制冷剂供给进入"定额+持续削 减"阶段，同时二代制冷剂加速削减，四代制冷剂因为专利问题价格居高不下难以形成替代，制冷剂供 给端持续缩减。同时随着热泵、冷链市场发展以及空调存量市场持续扩张，叠加东南亚国家制冷剂需求 扩张等因素，需求端保持稳定增长。未来制冷剂市场供需缺口将会持续扩大，制冷剂价格稳定上涨，拥 有较高配额占比的公司将充分受益。相关公司：巨化股份、三美股份、昊华科技、永和股份等相关公 司。 华安证券近日发布基础化工行业周报：本周（2025/12/15-2025/12/19）化工板块整体涨跌幅表现排名第5 位，涨跌幅为2.58%，走势处于市场整体上游。上证综指涨跌幅为0.03%，创业板指涨跌幅为-2.26%， 申万化工板块跑赢上证综指2.55个百分点，跑赢创业板指4.83个百分点。 以下为研究报告摘要： 主要观点： 行业周观点 本周（2025/12/15-2025/12/19）化工板块整体涨跌幅表现排名第5位，涨跌幅为2.58%，走势处于市场整 体上游。上证综指涨跌幅为0.03%，创业板指涨跌幅为-2.26%，申万化工板块跑赢上证综指2. ...

Investment Rating - The industry investment rating is "Overweight" [1] Core Insights - The chemical sector is expected to continue its differentiated trend in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4][5] - The recent suspension of anti-dumping duties on titanium dioxide by India is anticipated to allow Chinese companies to regain market share lost to competitors during the duty period [35] - The closure of four factories by Westlake Group in the U.S. is a strategic move to enhance profitability in high-performance and basic materials [35] Industry Performance - The chemical sector ranked 5th in overall performance for the week of December 15-19, 2025, with a gain of 2.58%, outperforming the Shanghai Composite Index by 2.55 percentage points [3][20] - The polyurethane sub-sector showed the highest increase at 9.04%, while non-metallic materials III experienced a decline of 2.29% [21] Specific Industry Trends - Synthetic biology is at a pivotal moment, with low-energy products expected to see significant growth due to energy structure adjustments [5] - The third-generation refrigerants are entering a high prosperity cycle as supply constraints tighten and demand remains stable [6] - The electronic specialty gases market presents substantial opportunities for domestic companies due to high technical barriers and increasing demand from semiconductor and photovoltaic sectors [7][8] - The trend towards light hydrocarbon chemicals is becoming global, with a shift from heavy naphtha to lighter feedstocks like ethane and propane [8] - The COC polymer industry is accelerating its domestic industrialization, driven by local demand and supply chain security concerns [9] - Potash prices are expected to rebound as major producers reduce output, leading to a tightening supply situation [10] - The MDI market is characterized by oligopoly, with a favorable supply structure anticipated as demand recovers [11]

Industry Overview - The chemical sector's overall performance ranked 13th this week (2025/11/24-2025/11/28) with a change of 2.98%, positioned in the upper-middle of the market. The Shanghai Composite Index rose by 1.40%, while the ChiNext Index increased by 4.54%. The Shenwan Chemical sector outperformed the Shanghai Composite by 1.58 percentage points but underperformed the ChiNext by 1.56 percentage points [1]. Key Insights - The chemical industry is expected to continue its trend of divergence in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [1]. Synthetic Biology - A pivotal moment for synthetic biology is anticipated, driven by energy structure adjustments. Traditional chemical companies will face competition based on energy consumption and carbon tax costs. Companies that adopt green energy alternatives and leverage integrated and scaled advantages are likely to reduce energy costs and expand into larger overseas markets. The demand for bio-based materials is expected to surge, leading to potential profitability and valuation increases. Key companies to watch include Kasei Bio and Huaheng Bio [1]. Refrigerants - The implementation of quota policies is expected to usher in a high-growth cycle for third-generation refrigerants. Starting in 2024, the supply of these refrigerants will enter a "quota + continuous reduction" phase, while second-generation refrigerants will be phased out more rapidly. The demand for refrigerants is projected to grow steadily due to the development of heat pumps, cold chain markets, and the expansion of the air conditioning market in Southeast Asia. Companies with high quota shares, such as Juhua Co., Sanmei Co., Haohua Technology, and Yonghe Co., are expected to benefit significantly [2]. Electronic Specialty Gases - Electronic specialty gases are critical to the electronics industry and represent a core component of domestic industrialization. The domestic market is experiencing rapid upgrades in wafer manufacturing, but there is a mismatch with the fragmented and insufficient capacity of high-end electronic specialty gases. Companies that establish high-end capacity and possess substantial technical reserves are likely to seize opportunities for growth. Demand is driven by integrated circuits, displays, and photovoltaics. Key players include Jinhong Gas, Huate Gas, and China Shipbuilding Gas [3]. Light Hydrocarbon Chemicals - The trend towards light raw materials in the global olefin industry has been significant over the past decade, with a shift from heavy naphtha to lighter low-carbon alkanes like ethane and propane. This transition is characterized by shorter processes, higher yields, and lower costs. Light hydrocarbon chemicals also align with global low-carbon and energy-saving initiatives. Companies in this sector, such as Satellite Chemical, are expected to see their values reassessed [4]. COC Polymers - The industrialization of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic companies achieving breakthroughs after years of R&D. The shift of downstream industries, such as consumer electronics and new energy vehicles, to domestic sources is increasing the demand for these materials. The market is currently constrained by high prices, but domestic companies are expected to break through and expand market space. Key company to watch is Acolyte [5]. Potash Fertilizers - Potash fertilizer prices are expected to rebound as the industry enters a destocking cycle. Canpotex has withdrawn new quotes, and Nutrien has announced production cuts, leading to a short-term decline in supply. The termination of the Black Sea Grain Export Agreement has increased the prices of wheat and corn, boosting the demand for potash fertilizers. Companies like Yara International, Salt Lake Potash, and Zangge Mining are positioned to benefit from this trend [6]. MDI Market - The MDI market is characterized by oligopoly, with demand steadily improving due to the expansion of polyurethane applications. The global MDI production capacity is concentrated among five major chemical giants, which account for 90.85% of total capacity. Despite current price fluctuations, MDI remains a high-margin product. Companies like Wanhua Chemical are expected to benefit from a favorable supply structure as demand recovers [7]. Price Tracking - The top five price increases this week included methanol (East China) at 6.27%, NYMEX natural gas (futures) at 5.90%, and caprolactam (East China CPL) at 5.49%. The top five price decreases included liquid chlorine (East China) at -7.82% and propylene oxide (East China) at -5.85% [8]. Supply Side Tracking - This week, 168 chemical enterprises had their production capacities affected, with 9 new repairs and 3 restarts reported [9].

Investment Rating - The industry investment rating is "Overweight" [1] Core Views - The chemical sector overall experienced a decline of 7.47% during the week of November 17-21, 2025, ranking 29th among all sectors, underperforming the Shanghai Composite Index by 3.57 percentage points [4][22] - The report highlights a continued trend of divergence in the chemical industry for 2025, recommending focus on sectors such as synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4] Summary by Sections Industry Performance - The chemical sector's performance was notably poor, with the Shanghai Composite Index declining by 3.90% and the ChiNext Index by 6.15% during the same period [4][22] - The report indicates that the chemical sub-sectors showed varied performance, with the least decline in refining chemicals (-0.58%) and the most significant decline in fluorinated chemicals (-11.00%) [23] Key Industry Dynamics - The report discusses the upcoming quota policies for refrigerants, which are expected to enter a high prosperity cycle starting in 2024, with a continuous reduction in supply for second-generation refrigerants [5] - The electronic specialty gases market is highlighted as a critical area for domestic substitution opportunities due to high technical barriers and increasing demand from semiconductor and photovoltaic sectors [6][8] - The light hydrocarbon chemical trend is identified as a global movement, with a shift towards lighter raw materials for olefin production, which is expected to enhance the valuation of leading companies in this sector [8] - The COC polymer industry is experiencing accelerated domestic industrialization, driven by the shift of downstream industries to domestic production and the need for supply chain security [9] - The potassium fertilizer market is anticipated to rebound as major producers reduce output, leading to a potential recovery in prices [10] - The MDI market is characterized by oligopoly, with a favorable supply structure expected as demand gradually recovers [12]

Investment Rating - Industry Rating: Overweight [1] Core Views - The chemical sector showed a weekly performance ranking of 8th with a gain of 1.99%, outperforming the Shanghai Composite Index by 1.63 percentage points and the ChiNext Index by 5.85 percentage points [4][22]. - The chemical industry is expected to continue its differentiated trend in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4]. Summary by Sections Industry Performance - The chemical sector's overall performance for the week of October 9-10, 2025, was a gain of 1.99%, ranking 8th among sectors [22]. - The top three performing sub-sectors were phosphate and phosphorus chemicals (6.26%), titanium dioxide (4.23%), and oil and petrochemical trade (4.23%) [23]. Key Industry Dynamics - Synthetic biology is at a pivotal moment, with low-energy products expected to gain a longer growth window due to the adjustment of energy structures [4]. - The upcoming quota policy for third-generation refrigerants is anticipated to enter a high prosperity cycle, with demand expected to grow steadily due to market expansion in Southeast Asia [5]. - The electronic specialty gases market is characterized by high technical barriers and high added value, with significant opportunities for domestic substitution [6][8]. - The trend of light hydrocarbon chemicals is becoming global, with a shift towards lighter raw materials for olefin production [8]. - The COC polymer industry is accelerating its domestic industrialization process, driven by supply chain security concerns and the shift of downstream industries to domestic production [9]. - Potash fertilizer prices are expected to rebound as major producers reduce output and the demand for fertilizers increases due to rising grain prices [10]. - The MDI market is characterized by oligopoly, with a favorable supply structure expected as demand gradually recovers [12].

Group 1: Industry Overview - The chemical sector's overall performance ranked 17th this week (2025/09/22-2025/09/26) with a decline of 0.95%, underperforming the Shanghai Composite Index by 1.16 percentage points and the ChiNext Index by 2.91 percentage points [2][3] - The chemical industry is expected to continue its trend of divergence in 2025, with a focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [2] Group 2: Key Industry Trends - Synthetic biology is at a pivotal moment, with low-energy products likely to gain a longer growth window due to the shift in energy structure. Traditional chemical companies will need to focus on energy consumption and carbon tax costs [2] - The introduction of quota policies for third-generation refrigerants is anticipated to lead to a high-growth cycle, with supply constraints and stable demand growth from markets like heat pumps and cold chains [3] - The electronic specialty gases market is characterized by high technical barriers and value, with domestic production opportunities arising from the rapid upgrade of downstream industries [4] Group 3: Specific Chemical Segments - The trend towards light hydrocarbon chemicals is becoming global, with a shift from heavy naphtha to lighter feedstocks like ethane and propane, which are more cost-effective and environmentally friendly [5] - The industrialization of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic production capabilities and the need for supply chain security [6] - MDI (methylene diphenyl diisocyanate) is experiencing a favorable supply landscape due to its high technical barriers and the concentration of production among a few global players [9] Group 4: Price Tracking and Supply Chain - Weekly price tracking shows significant increases in liquid chlorine (252.38%) and paraquat (42%), while PX and bisphenol A saw declines of -5.56% and -4.27% respectively [10] - The supply side of the chemical industry is affected, with 155 companies reporting changes in production capacity, including 4 new shutdowns and 12 restarts this week [11]

Investment Rating - Industry investment rating: Overweight [1] Core Views - The chemical sector's overall performance ranked 17th this week, with a decline of 0.95%, underperforming the Shanghai Composite Index by 1.16 percentage points and the ChiNext Index by 2.91 percentage points [4][22] - The chemical industry is expected to continue its trend of differentiated growth in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4] Summary by Sections Industry Performance - The chemical sector's performance this week was -0.95%, ranking it 17th among all sectors, while the top three performing sectors were power equipment, non-ferrous metals, and electronics [22][23] - The top three individual stocks in the chemical sector this week were Bluefeng Biochemical (61.16%), Shangwei New Materials (44.81%), and Huarsoft Technology (31.83%) [28] Key Industry Dynamics - A new plan for stable growth in the petrochemical industry was released by seven departments, aiming for an average annual growth of over 5% in value added from 2025 to 2026 [34] - The plan emphasizes the importance of technological innovation, digital empowerment, and environmental sustainability in the petrochemical sector [34] Investment Opportunities - Synthetic biology is highlighted as a key area for growth, with companies like Kasei Biotech and Huaheng Biological being recommended for investment [4][8] - The third-generation refrigerants are expected to enter a high prosperity cycle due to upcoming quota policies and stable demand growth from the air conditioning and cold chain markets [5] - The electronic specialty gases market presents significant domestic substitution opportunities, driven by rapid upgrades in the semiconductor and photovoltaic industries [6][8] - Light hydrocarbon chemicals are identified as a global trend, with a shift towards lighter raw materials expected to enhance the value of leading companies in this sector [8] - The COC polymer industry is accelerating its domestic industrialization process, with companies like AkzoNobel being recommended for attention [9] - Potash fertilizer prices are anticipated to rebound as supply tightens and demand increases due to rising agricultural planting intentions [10] - The MDI market is expected to improve due to oligopolistic supply dynamics and stable demand from polyurethane applications [12]

Industry Overview - The chemical sector's overall performance ranked 12th this week (2025/09/08-2025/09/12) with a change of 2.36%, outperforming the Shanghai Composite Index by 0.83 percentage points and the ChiNext Index by 0.25 percentage points [2][3] - The chemical industry is expected to continue its differentiated trend in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sugar substitutes, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [2][3] Synthetic Biology - The arrival of a pivotal moment in synthetic biology is anticipated, driven by energy structure adjustments that may disrupt fossil-based materials, favoring low-energy products [2] - Traditional chemical companies are expected to compete on energy consumption and carbon tax costs, with successful firms leveraging green energy alternatives and integrated advantages to reduce costs [2] - Companies like Kasei Bio and Huaheng Bio are highlighted as leaders in the synthetic biology sector [2] Refrigerants - The implementation of quota policies is expected to lead to a high-growth cycle for third-generation refrigerants, with supply entering a "quota + continuous reduction" phase starting in 2024 [3] - The demand for refrigerants is projected to grow due to the development of heat pumps, cold chain markets, and the expansion of the air conditioning market in Southeast Asia [3] - Companies such as Juhua Co., Sanmei Co., Haohua Technology, and Yonghe Co. are positioned to benefit from this trend [3] Electronic Specialty Gases - Electronic specialty gases are critical to the electronics industry, characterized by high technical barriers and added value [4] - The domestic market faces a contradiction between rapid upgrades in wafer manufacturing and insufficient high-end electronic specialty gas capacity [4] - Companies like Jinhong Gas, Huate Gas, and China Shipbuilding Gas are expected to capitalize on the growing demand driven by semiconductors, displays, and photovoltaics [4] Light Hydrocarbon Chemicals - The trend towards lighter raw materials in the global olefin industry is noted, with a shift from heavy naphtha to lighter alkanes like ethane and propane [5] - Light hydrocarbon chemicals are recognized for their low carbon emissions, low energy consumption, and low water usage, aligning with global carbon neutrality goals [5] - Satellite Chemical is recommended as a key player in the light hydrocarbon chemical sector [5] COC Polymers - The industrialization of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic companies achieving breakthroughs and the shift of downstream industries to China [6] - COC/COP materials are increasingly used in high-end applications, with domestic firms expected to overcome supply-side bottlenecks [6] - Akolai is identified as a company to watch in the COC polymer production segment [6] MDI Market - The MDI market is characterized by oligopoly, with demand steadily increasing due to the expansion of polyurethane applications [9] - The market is currently experiencing price stabilization at low levels, but profitability remains strong [9] - Wanhu Chemical is highlighted as a key player in the polyurethane sector, benefiting from the anticipated improvement in the MDI supply landscape [9] Potash Fertilizer - Potash fertilizer prices are expected to rebound as the industry enters a destocking phase, with supply constraints due to Canpotex withdrawing new quotes and Nutrien announcing production cuts [7][8] - The demand for potash is projected to rise as farmers increase planting intentions, influenced by rising grain prices [8] - Companies such as Yara International, Salt Lake Potash, and Cangge Mining are noted as leading firms in the potash sector [8] Weekly Price Tracking - The top five price increases this week included liquid chlorine (21.69%), acrylic acid (5.66%), and trichloroethylene (4.44%) [10] - The top five price decreases included butyl rubber (-11.25%), NYMEX natural gas futures (-4.33%), and DMF (-3.68%) [10] Supply-Side Tracking - A total of 162 chemical enterprises had their production capacities affected this week, with 7 new repairs and 11 restarts reported [11]

Industry Overview - The chemical sector's overall performance ranked 11th this week (2025/08/25-2025/08/29) with a fluctuation of 1.11%, positioned in the upper-middle of the market. The Shanghai Composite Index fluctuated by 0.84%, while the ChiNext Index saw a fluctuation of 7.74%. The Shenwan Chemical sector outperformed the Shanghai Composite by 0.27 percentage points but underperformed the ChiNext by 6.63 percentage points [1][2]. Key Industry Insights - The chemical industry is expected to continue its differentiated trend in 2025, with recommendations to focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [2]. Synthetic Biology - A pivotal moment for synthetic biology is anticipated, driven by energy structure adjustments. Traditional chemical companies will face competition based on energy consumption and carbon tax costs. Companies that utilize green energy alternatives and scale advantages are likely to reduce energy costs and expand into larger overseas markets. The demand for bio-based materials is expected to surge, leading to potential profitability and valuation increases. Key companies to watch include Kasei Bio and Huaheng Bio [2]. Refrigerants - The implementation of quota policies is expected to usher in a high-growth cycle for third-generation refrigerants. Starting in 2024, the supply of these refrigerants will enter a "quota + continuous reduction" phase, while second-generation refrigerants will see accelerated reductions. The demand for refrigerants is projected to grow steadily due to the development of heat pumps, cold chain markets, and the expansion of the air conditioning market in Southeast Asia. Companies with a high quota share in refrigerants are likely to benefit from the ongoing supply-demand gap. Relevant companies include Juhua Co., Sanmei Co., Haohua Technology, and Yonghe Co. [3][4]. Electronic Specialty Gases - Electronic specialty gases are critical to the electronics industry and represent a core aspect of domestic industrial chain localization. The domestic market is experiencing rapid upgrades in wafer manufacturing, leading to a mismatch between the demand for high-end electronic specialty gases and the insufficient domestic production capacity. Companies that can establish high-end production capacity and possess substantial technical reserves are expected to gain a competitive edge. Key players include Jinhong Gas, Huate Gas, and China Shipbuilding Gas [4][5]. Light Hydrocarbon Chemicals - The trend towards light raw materials in the global olefin industry has been significant over the past decade, with a shift from heavy naphtha to lighter low-carbon alkanes like ethane and propane. This transition is characterized by shorter processes, higher yields, and lower costs. Light hydrocarbon chemicals are also aligned with global low-carbon and energy-saving initiatives. The leading companies in this sector are expected to see their valuations reassessed positively [5]. COC Polymers - The industrialization process of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic companies achieving breakthroughs after years of research. The shift of downstream industries, such as consumer electronics and new energy vehicles, to domestic production has heightened the urgency for local alternatives. The market for COC/COP remains constrained by supply-side bottlenecks, but domestic companies are poised to break through and expand market opportunities. Notable companies include Akerley [6]. MDI Market Dynamics - The MDI market is characterized by oligopolistic supply dynamics, with demand remaining stable due to the expansion of polyurethane applications. The global MDI production capacity is concentrated among eight manufacturers, with five major companies accounting for 90.85% of total capacity. Despite current price pressures, MDI is expected to maintain profitability, and the supply landscape is likely to improve as demand recovers. Key companies to monitor include Wanhua Chemical [9]. Price Tracking - The top five price increases this week included NYMEX natural gas (11.08%), bisphenol A (2.99%), PX (2.86%), refrigerant R32 (2.56%), and butadiene (2.08%). Conversely, the largest price declines were seen in liquid chlorine (-25.86%), urea (-3.45%), TDI (-3.33%), toluene (-3.18%), and pure benzene (-2.70%) [10]. Supply Side Tracking - This week, 153 chemical companies reported changes in production capacity, with six new maintenance activities and four restarts noted [11].