需求旺季到来，粘胶短纤景气度有望向好

Investment Rating - The industry rating is "Overweight" (maintained) [5] Core Insights - The demand peak season is approaching, and the outlook for viscose staple fiber is expected to improve. The viscose staple fiber sector is subject to policy restrictions on new product construction. Recently, the operating rate of viscose staple fiber has been at a high level, with rapid inventory decline and improved profit margins. The traditional demand peak season of "Golden September and Silver October" is expected to boost demand for viscose staple fiber [6][12]. Industry Overview - From September 1 to September 5, 2025, the basic chemical industry experienced a weekly decline of 1.36%, ranking 20th among all Shenwan first-level industries in terms of weekly performance. The top five stocks in terms of weekly gains in the basic chemical industry were: Dazhongnan, Lushan New Materials, Taihe Technology, Lingpai Technology, and Jianbang Co., Ltd. The top five stocks in terms of weekly losses were: Tongyi Zhong, Meilian New Materials, Jianye Co., Ltd., *ST Yatai, and Akoli [5][10]. Investment Recommendations - With the traditional demand peak season approaching, the outlook for viscose staple fiber is expected to improve. Mid-term investment focus in the basic chemical industry includes: 1. Refrigerant industry constrained by quotas (Juhua Co., Ltd., Sanmei Co., Ltd., Yonghe Co., Ltd., Dongyue Group); 2. Industries benefiting from "anti-involution," such as titanium dioxide (Longbai Group); 3. Industries driven by domestic demand to hedge against tariff impacts, such as phosphate fertilizer (Yuntianhua) and civil explosives (Guangdong Hongda) [8][25].