黑色建材周报：市场情绪反复，玻碱震荡偏弱-20250928

Report Industry Investment Rating - Glass: Oscillating weakly [3] - Soda Ash: Oscillating weakly [3] - Cross-variety: None [3] - Cross-period: None [3] Core Viewpoints - The glass market is affected by speculative demand and downstream restocking, with slight inventory reduction but limited overall changes. The glass price is volatile due to macro policies, while the fundamentals still suppress the price. Attention should be paid to macro policies and peak-season demand [1]. - The supply - demand contradiction of soda ash persists. With the ignition of Yuanxing Phase II, the supply pressure will increase. Focus on whether the speculative demand for soda ash weakens, and monitor new capacity production progress and inventory changes [2]. Summary by Related Catalogs Price and Spread - This week, the glass main contract 2601 oscillated strongly, closing at 1,252 yuan/ton on Friday, with a 2.88% increase. The weekly average price of the domestic float glass market was 1,178 yuan/ton, a 14.9 - yuan/ton increase from the previous week [1][5]. - This week, the soda ash main contract 2601 oscillated and consolidated, closing at 1,293 yuan/ton on Friday, with a 1.93% decrease. The downstream demand for soda ash was stable, mainly for pre - holiday rigid restocking [1][5]. Supply - This week, the float glass output was 1.1242 million tons, a 0.27% increase from the previous week. The enterprise operating rate was 76.01%, unchanged from the previous week, and the capacity utilization rate was 80.33%, a 0.25% increase from the previous week [1][17]. - This week, the soda ash capacity utilization rate was 89.12%, a 3.59% increase from the previous week; the output was 776,900 tons, a 4.19% increase from the previous week [2][17]. Demand - This week, the glass trading sentiment was boosted by macro policies. The futures and spot markets resonated, with downstream prices rising and purchasing enthusiasm increasing. There was pre - holiday rigid restocking, and the production - sales ratio improved [1][19]. - This week, the downstream of soda ash mainly engaged in pre - holiday rigid restocking. The photovoltaic glass and float glass operations were stable, with no obvious changes in production lines [2][19]. Inventory - This week, the total inventory of the national float glass sample enterprises was 59.355 million heavy boxes, a 2.55% decrease from the previous week, indicating inventory reduction [1][23]. - This week, the inventory of domestic soda ash manufacturers was 1.6515 million tons, a 5.93% decrease from the previous week, showing inventory reduction [2][23].