Around the intermediate links to develop a capacity of 12,000 tons of functional additives, its representative products are hexamethyldisilazane and vinyl double head. Hexamethyldisilazane has benefited from the demand for gaseous silica, pharmaceutical synthesis and electronic semiconductors. From 2020 to 2026, the global gaseous phase silica market is expected to grow at a compound rate of 6.35% to $2.3 billion. As a protective agent for pharmaceutical groups, it is widely used in cephalosporins, penicillin and other fields as it has advantages of safety, stability, easy combination and easy removal. The electronic semiconductor field is widely used as cleaning agent and etching agent. As an end capping agent, vinyl double head is mainly used in vinyl silicone rubber, vinyl silicone oil and other silicone deep processing products. The gradual improvement of the permeability of new energy vehicles will become an important increment of downstream demand.