纯碱周报：成本托底，或支撑纯碱价格-20251201

Report Summary 1. Investment Rating No investment rating for the industry is provided in the report. 2. Core View In the short term, the soda ash market is expected to maintain a low - level volatile operation. The dual pressures of demand contraction due to the concentrated cold repair of float glass and the expectation of new capacity launch still exist. However, the growth of the export market and the increased demand for light soda ash in sectors such as lithium carbonate bring marginal improvements. The cost support and the pattern of loose supply - demand will continue to compete, and the price movement space is limited [8][40]. 3. Summary by Directory 3.1 Market Review - Last week, the price of the main soda ash contract SA2601 fluctuated within a narrow range between 1161 - 1194 yuan/ton. As of the afternoon close on November 28, 2025, the main contract rose 7 yuan/ton, a weekly increase of 0.60%, closing at 1177 yuan/ton [6]. 3.2 Fundamental Analysis - Supply: As of November 27, 2025, the domestic soda ash production was 698,100 tons, a decrease of 22,700 tons or 3.15% from the previous week. The comprehensive capacity utilization rate was 80.08%, down 2.60% from the previous week [7][9]. - Inventory: As of November 27, 2025, the total inventory of domestic soda ash manufacturers was 1.5874 million tons, a decrease of 28,300 tons or 1.75% from Monday. Among them, light soda ash was 740,600 tons, a decrease of 200 tons, and heavy soda ash was 846,800 tons, a decrease of 28,100 tons [7][14]. - Shipment: On November 27, the shipment volume of Chinese soda ash enterprises was 755,100 tons, a decrease of 3.65% from the previous week. The overall shipment rate was 108.16%, a decrease of 0.57 percentage points [16]. - Profit: As of November 27, 2025, the theoretical profit of the dual - ton soda ash by the combined - alkali method was - 140 yuan/ton, an increase of 13.50 yuan/ton from the previous week. The theoretical profit of the ammonia - alkali method was - 38.50 yuan/ton, remaining unchanged from the previous week [19][23]. 3.3 Downstream Industry - Float Glass Industry: As of November 27, 2025, the daily output of national float glass was 157,200 tons, a decrease of 0.57% from the 20th. The weekly output from November 21 - 27 was 1.1039 million tons, a decrease of 0.57% from the previous week and 0.86% from the same period last year. The total inventory of national float glass sample enterprises was 62.362 million weight boxes, a decrease of 941,000 weight boxes or 1.49% from the previous week, and an increase of 27.23% from the same period last year [26][30]. 3.4 Comprehensive Analysis - Market Situation: This week, the main soda ash futures contract showed a low - level volatile pattern. The spot market quotes remained stable, but the futures market was under pressure due to the marginal weakening of the supply - demand fundamentals [37]. - Supply - Demand: Supply decreased slightly this week, but future supply pressure will increase with the expected December launch of the 2.8 - million - ton natural soda project of Yuangxing Energy Phase II. Demand for light soda ash is stable, while heavy soda ash demand is under pressure due to the increased cold repair of float glass production lines [38]. - Inventory and Profit: Inventory continued to decline but remained at a high level. The combined - alkali method profit improved slightly, and the ammonia - alkali method profit remained stable at a low level. The industry as a whole is still in the loss range [39]. - Outlook and Suggestions: In the short term, the soda ash market is expected to maintain a low - level volatile operation. It is recommended to take a short - term volatile approach, not to short excessively in the context of industry losses, and pay attention to cost support levels. For arbitrage, it is recommended to wait and see. For options, consider selling the wide - straddle option strategy [40][41].