In June 2026, global silicone giant Dow announced it would advance a series of special investment projects totaling approximately $100 million, aiming to significantly expand its global specialty silicone production and innovation capabilities by the end of 2027. This series of projects marks the full implementation phase of the silicone investment plan Dow first disclosed at its 2024 Investor Day.

Concurrent Capacity Expansions Across Three Sites, Focusing on High-Growth Segments

According to information released by Dow, the investment covers three locations—the United States, China, and Japan—with a primary focus on two major areas:

First, the expansion of liquid silicone rubber (LSR) manufacturing. LSR production facilities in Carrollton, Kentucky (USA) and Zhangjiagang, China are expected to come online in 2027, supporting high-performance applications in three high-growth sectors: mobility (particularly new energy vehicles), electronics (data centers and microelectronics), and healthcare.

Second, the capacity expansion of engineered silicone materials. Projects aimed at boosting capacity for advanced electronics applications—including power electronics, semiconductor packaging, thermal management, and electrical protection—are scheduled to commence production this year in Songjiang, Shanghai (China) and Fukui, Japan; expansion projects in Auburn, Michigan (USA) and Zhangjiagang, China are expected to be completed by 2027.

In addition, Dow has completed the expansion of its cooling science laboratories—the Shanghai, China lab was completed earlier this year, and the Midland, Michigan (USA) lab was inaugurated in June—to support customers in more rapidly developing and scaling next-generation thermal management solutions.

Zhangjiagang Base Continues to Elevate Its Strategic Position

Greater China is Dow's second-largest market globally, and the Zhangjiagang base has become one of Dow's largest manufacturing sites in the Asia-Pacific region. The site boasts a foundational capacity base of 210,000 tons per year of siloxane and fumed silica, as well as a complex downstream silicone product line including silicone resins, liquid silicone rubber, and adhesives.

Of notable significance, in April 2026, Dow Silicones (Zhangjiagang) officially broke ground on its 2,500 tons/year silicone polymer batch-line expansion project; in March 2025, the Zhangjiagang downstream silicone product expansion project was completed, serving markets including electronics, transportation, and renewable energy. The Zhangjiagang base is strategically transitioning from a "raw material production base" to an integrated "specialty products + raw materials" hub.

Capacity Expansion Sends Signal to the Industry

Dow stated that demand for specialty silicones in the mobility, electronics, and healthcare sectors continues to outpace global GDP growth, with stringent requirements for product performance, supply stability, and technical support. These investments will help customers enhance supply security and shorten the commercialization cycle for new products.

For the domestic silicone industry in China, Dow's expansion both validates the sector's growth potential and signals intensifying competition in the high-end market. Domestic LSR manufacturers will need to accelerate their pace in technology iteration and product differentiation.

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