川发龙蟒：公司合计拥有220万吨/年硫酸装置，目前无黄磷产能，亦暂未开展五硫化二磷相关业务

Core Viewpoint - The company is focused on sulfur procurement primarily for sulfuric acid production and as a raw material for wet-process phosphoric acid production, with significant sulfuric acid production capacity in place [1] Group 1: Sulfuric Acid Production Capacity - The company has a total sulfuric acid production capacity of 2.2 million tons per year, which includes a 500,000 tons/year sulfuric acid facility at the De'a project, a 300,000 tons/year facility at the Panzhihua project, and an existing 900,000 tons/year facility [1] - Additionally, the Tianbao company operates a 500,000 tons/year sulfuric acid facility using sulfur iron ore [1] Group 2: Current Operations and Future Plans - Currently, the company does not have any yellow phosphorus production capacity and has not yet initiated any business related to pentasulfide phosphorus [1] - There are inquiries regarding the company's ability to upgrade its capacity to produce ultra-pure yellow phosphorus, which is a key raw material for synthesizing solid-state battery electrolytes [3]