90 billion won invested in Wanju 2nd Plant to expand production facilities for precursors, a core semiconductor material
Hiring 20 new employees by 2030 to strengthen regional semiconductor material industry competitiveness

Jeonbuk State announced on the 13th that it has signed an investment agreement worth a total of 90 billion won with Adeka Korea Co., Ltd. to expand semiconductor material production facilities within its Wanju 2nd Plant.

This investment marks the second of the year, following Adeka Korea’s agreement in July to expand its 3rd plant. It is significant for expanding semiconductor material production capacity and strengthening Jeonbuk's competitiveness in the semiconductor materials industry.

Adeka Korea plans to expand its semiconductor material production facilities at the 2nd plant in Wanju Industrial Complex, Bongdong-eup, Wanju-gun, and hire 20 new employees by 2030. Construction of the plant is scheduled to begin in December 2026 and be completed in July 2028. Full-scale production is expected to follow equipment installation and trial runs.

The expanded facility will produce precursors, which are used to form dielectric films for capacitors—a core component of semiconductors. Precursors are high-tech materials requiring strict quality control to address semiconductor miniaturization and high integration, making stable supply and continuous technological development essential.

This expansion is expected to establish a domestic production system for materials previously reliant on imports, thereby reducing production costs, enabling rapid responses to client demands, and ensuring a stable product supply.

Established in Wanju-gun in 1991, Adeka Korea is the South Korean subsidiary of Japan's ADEKA Group, producing plastic additives and semiconductor electronic materials. As a mid-sized enterprise with approximately 364.8 billion won in revenue and 260 employees as of 2025, the company has accumulated technological prowess and quality competitiveness since beginning semiconductor material production in 2006.

Jeonbuk State anticipates that this investment will contribute to expanding the domestic production base for core semiconductor materials, creating local jobs, and upgrading the regional industrial structure.

Yoo Hee-sook, Director of the Corporate Attraction Support Bureau at Jeonbuk State, stated, "Adeka Korea's decision to make two additional investments in Jeonbuk this year is a meaningful achievement that demonstrates their trust in the region's industrial infrastructure and investment environment. We will spare no administrative support to ensure that the company's sustained growth and further investments lead to regional economic development."

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