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OCI Expands Supply of Semiconductor Phosphoric Acid to Domestic Manufacturers, including DB HiTek’s Bucheon Plant

OCI Expands Supply of Semiconductor Phosphoric Acid to 
Domestic Manufacturers, including DB HiTek’s Bucheon Plant

- OCI started suppling semiconductor phosphoric acid to DB Hi Tek’s plant in Bucheon this month. 
- Expanding supply to the plant in Bucheon, in addition to the Sangwoo plant, demonstrates that OCI’s product quality and stable supply are recognized by customers. 
- This expansion further proves OCI’s excellent product quality following its selection as a supplier to SK Hynix in August.

OCI started supplying semiconductor phosphoric acid to DB HiTek, a domestic chip foundry specialist, this month. This expanded supply to DB HiTek further demonstrates OCI's competitive quality in semiconductor phosphoric acid following its designation as the first domestic manufacturer to supply semiconductor phosphoric acid to SK Hynix in August.

Since OCI began producing semiconductor phosphoric acid in 2007, its Gunsan plant produced 25,000 tons annually, and is supplying domestic chip makers such as Samsung Electronics, SK Hynix, and SK keyfoundry. The semiconductor phosphoric acid produced by OCI is essential for wafer etching in the semiconductor fabrication process, and plays a crucial role in precisely removing unnecessary parts of wafers to create circuits.

DB HiTek, a Korean foundry company that specializes in 8-inch semiconductors, operates two plants, one in Bucheon (FAB1) and another in Sangwoo (FAB2). DB HiTek increased its production capacity in the first half of this year, and the Bucheon plant now produces 91,000 wafers per month, while the Sangwoo plant makes 63,000 wafers per month.

OCI has consistently worked to increase its supply to DB HiTek’s plant in Bucheon since it began providing semiconductor phosphoric acid to the Sangwoo plant in 2021. It is generally more challenging to supply products to a production line where other products are already in use than to supply them to a new plant, which makes this supply expansion particularly significant.

OCI has dedicated manpower exclusively for DB HiTek to supply products that meet DB HiTek’s specifications and production line characteristics. It has actively cooperated in close communication with the customer. OCI has also focused on R&D to improve product quality and production processes, and strives to ensure a stable supply and secure raw materials. As a result of DB HiTek recognizing OCI’s superior product quality and supply stability, OCI’s supply to the plant in Bucheon was achieved. 

In August, OCI became the first domestic manufacturer to be selected as a semiconductor phosphoric acid supplier to SK Hynix. This month, OCI expanded its supply to DB HiTek’s plant in Bucheon, underscoring the high regard for OCI’s product quality and competitiveness among domestic semiconductor manufacturers. OCI aims to further expand the sale of semiconductor phosphoric acid by flexibly responding to the growing demand of customers and leveraging its superior product competitiveness.

OCI President Yoo Shin Kim said, "The success in supplying semiconductor phosphoric acid to DB HiTek’s plant in Bucheon is a significant achievement. In the future, we will further strengthen our competitiveness by maintaining superior production quality and supply stability. Our goal is to secure an exclusive position as a core materials company in the semiconductor sector.”