2025年化工行业景气度将延续分化趋势，推荐关注合成生物学、农药、层析介质、代糖、维生素、轻烃 化工、COC聚合物、MDI等行业: （1）合成生物学奇点时刻到来。能源结构调整大背景下，化石基材料或在局部面临颠覆性冲击，低耗 能的产品或产业有望获得更长成长窗口。对于传统化工企业而言，未来的竞争在于能耗和碳税的成本， 优秀的传统化工企业会利用绿色能源代替方案、一体化和规模化优势来降低能耗成本，亦或新增产能转 移至更大的海外市场，从而达到双减的目标。同时，随着生物基材料成本下降以及"非粮"原料的生物基 材料的突破，生物基材料有望迎来需求爆发期，需求超预期的高景气赛道，未来有望盈利估值与业绩的 双重提升。推荐关注合成生物学领域，重点关注凯赛生物、华恒生物等行业领先企业。 （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 ...

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]

华安证券近日发布基础化工行业周报：本周（2025/12/08-2025/12/12）化工板块整体涨跌幅表现排名第 26位，涨跌幅为-2.19%，走势处于市场整体下游。上证综指涨跌幅为-0.34%，创业板指涨跌幅为 2.74%，申万化工板块跑输上证综指1.85个百分点，跑输创业板指4.93个百分点。 本周（2025/12/08-2025/12/12）化工板块整体涨跌幅表现排名第26位，涨跌幅为-2.19%，走势处于市场 整体下游。上证综指涨跌幅为-0.34%，创业板指涨跌幅为2.74%，申万化工板块跑输上证综指1.85个百 分点，跑输创业板指4.93个百分点。 2025年化工行业景气度将延续分化趋势，推荐关注合成生物学、农药、层析介质、代糖、维生素、轻烃 化工、COC聚合物、MDI等行业: （1）合成生物学奇点时刻到来。能源结构调整大背景下，化石基材料或在局部面临颠覆性冲击，低耗 能的产品或产业有望获得更长成长窗口。对于传统化工企业而言，未来的竞争在于能耗和碳税的成本， 优秀的传统化工企业会利用绿色能源代替方案、一体化和规模化优势来降低能耗成本，亦或新增产能转 移至更大的海外市场，从而达到双减的目标。同时，随着 ...

Industry Overview - The chemical sector's overall performance ranked 16th this week (2025/12/01-2025/12/05) with a fluctuation of 0.13%, underperforming compared to the Shanghai Composite Index and the ChiNext Index, which had fluctuations of 0.37% and 1.86% respectively [1] - The chemical industry is expected to continue its differentiated trend in 2025, with a focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [1] Synthetic Biology - The arrival of a pivotal moment in synthetic biology is anticipated, driven by the adjustment of energy structures, which may disrupt fossil-based materials and favor low-energy products [1] - Traditional chemical companies are expected to compete based on energy consumption and carbon tax costs, with successful firms leveraging green energy alternatives and integrated advantages to reduce costs [1] - Companies to watch in the synthetic biology field include Kasei Bio and Huaheng Bio [1] Refrigerants - The quota policy for third-generation refrigerants is set to be implemented, leading to a high prosperity cycle for this segment [2] - The supply of refrigerants is expected to decrease due to the "quota + continuous reduction" phase starting in 2024, while demand remains stable due to market expansions in heat pumps and cold chains [2] - Companies benefiting from this trend include Juhua Co., Sanmei Co., Haohua Technology, and Yonghe Co. [2] Electronic Specialty Gases - Electronic specialty gases are critical for the electronics industry, characterized by high technical barriers and added value [3] - The domestic market faces a mismatch between rapid upgrades in wafer manufacturing and insufficient high-end electronic specialty gas capacity, presenting opportunities for domestic replacements [3] - Key players in this sector include Jinhong Gas, Huate Gas, and China Shipbuilding Gas [3] Light Hydrocarbon Chemicals - The trend towards light raw materials in the global olefin industry is notable, with a shift from heavy naphtha to lighter low-carbon alkanes like ethane and propane [4] - Light hydrocarbon chemicals are favored for their low carbon emissions, low energy consumption, and low water usage, aligning with global carbon neutrality goals [4] - Companies to focus on in this area include Satellite Chemical [4] COC Polymers - The industrialization of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic companies overcoming previous R&D challenges [5] - The demand for COC/COP is increasing in various applications, including mobile camera lenses and medical packaging, with a strong push for domestic alternatives due to supply chain security concerns [5] - Acelor is a notable company in the COC polymer production segment [5] Potash Fertilizers - Potash fertilizer prices are expected to rebound as the industry enters a destocking cycle, with supply constraints from major producers like Canpotex and Nutrien [6] - The demand for potash is anticipated to rise due to increased planting intentions among farmers, driven by higher grain prices [6] - Key companies in the potash sector include Yara International, Salt Lake Potash, Zangge Mining, and Dongfang Iron Tower [6] MDI Market - The MDI market is characterized by oligopoly, with demand steadily increasing due to the expansion of polyurethane applications [7] - The market is currently experiencing price stabilization at low levels, but profitability remains strong, with future supply dynamics expected to improve [7] - Wanhu Chemical is a key player to watch in the polyurethane sector [7] Chemical Price Tracking - The top five price increases this week included liquid chlorine (21.43%), butadiene (10.29%), and nitric acid (8.33%) [8] - The top five price decreases included trichloroethylene (-10.64%) and phenol (-6.17%) [8] Supply Side Tracking - This week, 166 chemical companies reported changes in production capacity, with five new repairs and five restarts [9]

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]

Industry Overview - The chemical sector's overall performance ranked 9th this week (2025/11/10-2025/11/14) with a change of 2.61%, outperforming the Shanghai Composite Index by 2.79 percentage points and the ChiNext Index by 5.62 percentage points [1] - The chemical industry is expected to continue its differentiated trend in 2025, with a focus on synthetic biology, pesticides, chromatography media, sweeteners, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [1] Synthetic Biology - The arrival of a pivotal moment in synthetic biology is anticipated, driven by the adjustment of energy structures, which may disrupt fossil-based materials and favor low-energy products [1] - Traditional chemical companies are expected to compete on energy consumption and carbon tax costs, with successful firms leveraging green energy and integrated advantages to reduce costs [1] - The demand for bio-based materials is projected to surge, leading to potential profitability and valuation increases for companies in this sector, such as 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, with supply entering a "quota + continuous reduction" phase starting in 2024 [2] - The demand for refrigerants is anticipated to grow due to the development of heat pumps, cold chain markets, and the expansion of the air conditioning market, particularly in Southeast Asia [2] - Companies with a high quota share, 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, characterized by high technical barriers and added value [3] - The domestic market faces a mismatch between rapid upgrades in wafer manufacturing and insufficient high-end electronic specialty gas capacity, presenting opportunities for domestic replacements [3] - Companies like Jinhong Gas, Huate Gas, and China Shipbuilding Gas are positioned to capitalize on this demand [3] Light Hydrocarbon Chemicals - The trend towards light raw materials in the global olefin industry is becoming more pronounced, with a shift from heavy naphtha to lighter low-carbon alkanes like ethane and propane [4] - Light hydrocarbon chemicals are favored for their low carbon emissions, low energy consumption, and low water usage, aligning with global carbon neutrality goals [4] - Companies in the light hydrocarbon sector, such as Satellite Chemical, are expected to see a revaluation of their worth [4] COC Polymers - The industrialization of COC/COP (cyclic olefin copolymer) is accelerating in China, driven by domestic companies overcoming previous R&D challenges [5] - The shift of downstream industries like consumer electronics and new energy vehicles to domestic production is enhancing the demand for COC/COP materials [5] - Companies like Acolyte are recommended for their potential in the COC polymer production segment [5] Potash Fertilizers - Potash fertilizer prices are expected to rebound as the industry enters a destocking cycle, with supply reductions from major players like Canpotex and Nutrien [6] - The termination of the Black Sea Grain Export Agreement has led to increased prices for wheat and corn, boosting the demand for potash fertilizers [6] - Companies such as Yara International, Salt Lake Potash, and Zangge Mining are highlighted as key players in this sector [6] MDI Market - The MDI market is characterized by oligopoly, with demand steadily increasing due to the expansion of polyurethane applications [7] - Major global manufacturers, including Wanhua Chemical, BASF, Covestro, Huntsman, and Dow, control over 90% of MDI production capacity [7] - Despite current price pressures, MDI is expected to maintain profitability, with a positive outlook as demand recovers [7] Chemical Price Tracking - The top five price increases this week included dimethylcyclosiloxane (DMC) at 18.18%, sulfur at 8.96%, and NYMEX natural gas at 5.82% [8] - The top five price decreases included butadiene at -7.89% and hydrofluoric acid at -4.27% [8] Supply Side Tracking - This week, 164 chemical enterprises reported production capacity changes, with 11 new repairs and 5 restarts noted [9]

Investment Rating - Industry investment rating: Overweight [1] Core Views - The chemical sector showed a weekly performance ranking of 4th with a gain of 2.50%, outperforming the Shanghai Composite Index by 2.38 percentage points [3][22] - The chemical industry is expected to maintain a 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 ranked 4th for the week of October 27 to October 31, 2025, with a gain of 2.50% [22] - The top three performing sub-sectors were fluorochemicals (8.40%), inorganic salts (7.68%), and phosphate fertilizers (5.84%) [23] Key Industry Dynamics - A new 510 billion yuan state-owned enterprise fund for emerging industries has been launched, focusing on strategic emerging industries such as new-generation information technology, artificial intelligence, and new materials [34] - The price of lithium hexafluorophosphate continued to rise, with a 15% increase to 103,500 yuan/ton, driven by high demand in the energy storage market [34] Recommendations for Specific Sectors - Synthetic biology is highlighted as a key area for growth, with companies like Kasei Biotech and Huaheng Biotech recommended for investment [4] - The third-generation refrigerants are expected to enter a high prosperity cycle due to quota policies, benefiting companies with high quota shares such as Juhua Co., Sanmei Co., and Haohua Technology [5] - The electronic specialty gases market presents significant domestic substitution opportunities, with companies like Jinhong Gas and Huate Gas positioned for growth [6][8] - Light hydrocarbon chemicals are identified as a global trend, with companies like Satellite Chemical recommended for investment [8] - The COC polymer industry is accelerating its domestic industrialization process, with companies like AkzoNobel expected to benefit [9] - Potash fertilizer prices are anticipated to rebound as supply tightens, with companies like Yara International and Salt Lake Potash recommended [10] - The MDI market is expected to improve due to oligopolistic supply dynamics, with Wanhu Chemical highlighted as a key player [12]