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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.” 

OCI to supply semiconductor phosphoric acid to SK hynixOCI is strengthening its position as a semiconductor materials company. - OCI became the first domestic semiconductor materials company to supply semiconductor phosphoric acid to SK hynix.- The company holds the largest market share and supplies semiconductor phosphoric acid to all semiconductor manufacturers in Korea including Samsung Electronics and SK hynix.- OCI is strengthening its semiconductor materials business, such as phosphoric acid and hydrogen peroxide for semiconductors, in response to the growing semiconductor market. - OCI President Yoo Shin Kim said, “We will strengthen our position as a competitive semiconductor materials manufacturer.”OCI, a global leading advanced materials company, was selected as the first Korean phosphoric acid manufacturer to supply phosphoric acid to SK hynix Inc. With this order from SK hynix, OCI will further consolidate its position as the largest supplier in the domestic semiconductor phosphoric acid market and strengthen its standing as a leading semiconductor materials manufacturers.OCI received approval from SK hynix to supply semiconductor phosphoric acid after a rigorous qualification process, and held a ceremony to celebrate the shipment of the first products at its Gunsan plant on August 21.The semiconductor phosphoric acid supplied by OCI to SK hynix is one of the crucial materials in semiconductor manufacturing, and is used in the process of etching semiconductor wafers. OCI’s semiconductor phosphoric acid is a basic material used in all semiconductor processes, including DRAM, NAND flash memory and foundry production, and its demand expected to increase steadily in line with HBM’s growth and the recovery of the semiconductor business.Since it entered the semiconductor phosphoric acid business in 2007, OCI has reached an annual production capacity of 25,000 tons and has been stably supplying phosphoric acid to major domestic semiconductor companies such as Samsung Electronics Co., SK keyfoundry Inc., and DB HiTek Co., for 17 years. It maintains the largest market share in the semiconductor phosphoric acid market. By adding SK hynix as a new customer, OCI has become the only company supplying phosphoric acid to all major domestic semiconductor manufacturers in Korea.OCI plans to gradually expand its semiconductor phosphoric acid production capacity along with the growing demand from existing and new customers and contribute to the local production of semiconductor materials and stabilization of their supply chains.The company expects to increase sales of hydrogen peroxide, which is essential for the cleaning processes of semiconductor fabrication.OCI has produced hydrogen peroxide since 1979, with an annual capacity of 75,000 tons and has honed a competitive edge through its long history and technology. Samsung Electronics and SK hynix plan to resume their production line expansions with the recovery of the semiconductor business this year, and demand for electronic-grade hydrogen peroxide is expected to continue to increase accordingly.In addition, OCI supplies semiconductor hydrogen peroxide to Kioxia Corp, a Japanese NAND flash memory manufacturer. Last July, Kioxia completed the construction of a new wafer fabrication plant in Iwate Prefecture with a monthly capacity of 25,000 wafers, raising the prospect of additional orders for OCI.Recently, OCI decided to acquire a stake in P&O Chemical Co., which will increase its annual hydrogen peroxide production capacity by 50,000 tons, allowing it to proactively respond to the demand driven by the expanding production lines of customers.OCI President Yoo Shin Kim said, “It is very encouraging that OCI has become the first domestic manufacturer to supply semiconductor phosphoric acid to SK hynix after passing the qualification process, based on our technology. In the future, OCI will strengthen its position as a semiconductor materials company by expanding production and boosting competitiveness to meet the growing demand for semiconductors.” (End) 

OCI Receives Gold Medal in 2024 EcoVadis Sustainability Assessment - OCI received the Gold Medal awarded to the top 5% by EcoVadis, a major global ESG assessment agency. - Received high scores in the categories of environment, labor and human rights, with favorable scores in all categories. - OCI set tasks for each category as part of its mid- to long-term ESG roadmap and systematically implemented ESG activities.- Selected by Sustinvest as the best ESG company in the first half of 2024, demonstrating its outstanding ESG management capabilities at home and abroad.OCI announced that it has been awarded a Gold Medal from EcoVadis, a global ESG rating agency, placing it in the top 5% and recognizing its strong ESG management capabilities.EcoVadis, founded in France in 2007, is the world’s largest reliable global sustainability rating agency. EcoVadis evaluates over 130,000 companies across 180 countries in four categories: Environment, Labor and Human Rights, Ethics, and Sustainable Procurement, and awards Platinum (top 1%), Gold (top 5%), Silver (top 15%) and Bronze (top 35%) medals. OCI received Gold Medal, which is awarded to the top 5% of all companies assessed. Compared to the previous year, OCI has improved its scores in overall areas, especially high scores in environment, and labor and human rights. Recently, the number of clients requesting global ESG ratings from their suppliers has increased sharply, and with this EcoVadis rating, OCI is expected to strengthen its business capabilities by pre-emptively responding to such a trend of stricter global ESG regulations.OCI has established a mid- to long-term ESG roadmap to strengthen ESG management and set tasks in each of the environmental, social and governance categories, and systematically implemented ESG activities.In the environmental area, the company has established a greenhouse gas emissions management system aligned with global regulation of carbon emissions. It also set a target to increase its water reuse rate by more than 10% by 2030 compared with 2019, aiming to reinforce the monitoring of water resource usage at its sites. In addition, for producing eco-friendly carbon black using recycled fuel oil from plastic waste, OCI received the International Sustainability & Carbon Certification (ISCC) Plus, an international eco-friendly product certification, in 2023, and plans to increase certifications by using eco-friendly raw materials. In the area of labor and human rights, the company conducted human rights impact assessments at all sites in April of this year, identified human rights risks and incorporated the results into its corporate policies to strengthen human rights management. OCI also recently received the top rating, AA, in an ESG assessment conducted by Sustinvest, a domestic ESG rating agency. OCI was selected by Sustinvest as one of the 100 Best ESG Companies among listed Korean companies on a bi-annual basis, demonstrating its excellent sustainable management capabilities both domestically and internationally. OCI CEO YooShin Kim said, “With the Gold Medal from EcoVadis, we expect to actively meet the demands of our key stakeholders and maintain global market competitiveness. In the future, OCI will fulfill its corporate social responsibility, further strengthen ESG management, and pursue sustainable growth to realize its vision of becoming a global leading advanced materials company.”