: The industrial layout of D4 products has been achieved and stable supply to domestic core optical fiber enterprises has been achieved.

Hecheng Silicone Industry stated on the interactive platform that as a leading enterprise in the organosilicon industry, the company has already achieved industrial layout in octamethylcyclotetrasiloxane products. By 2025, the company's D4 product output is approximately 19,600 tons, with stable external sales already established. As a basic raw material for downstream products such as silicone oil, silicone rubber, textile auxiliaries, etc., it is widely used in multiple fields such as construction, electronics, and daily chemicals. In the optical fiber manufacturing field, since 2022, the company has achieved stable supply to domestic core optical fiber enterprises. However, due to the relatively low proportion of sales revenue from D4 products in the optical fiber field to the company's overall operating income, and the uncertainty in the future growth of this business due to factors such as changes in downstream optical fiber industry demand, market competition dynamics, and technological route substitution, exist.