OYH has entered into an agreement to acquire a 55% equity interest in PT Inter Aneka Lestari Kimia and PT Adhi Cakra Utama Mulia, the manufacturing and sales entities associated with Aquaproof, Indonesia’s second-largest waterproof coating brand. The transaction is expected to strengthen OYH’s local market presence in Indonesia, expand its retail distribution network, and support the continued development of its overseas business.

Founded in 1985, the Aquaproof business has built a strong presence in Indonesia’s building materials market over the past four decades. Its product portfolio includes waterproof coatings, tile adhesives, grouts, putty powder, concrete admixtures, and other building material products. These products are sold through a nationwide network of building material retailers, wholesalers, and major supermarkets.

Its brand portfolio includes Aquaproof, Supergrout, and Superfix. Aquaproof is one of Indonesia’s earliest waterproofing brands and has developed a strong local presence supported by an extensive distribution network.

Indonesia is Southeast Asia’s largest market by population, land area, and economic output. In 2025, the country’s population exceeded 287 million, while its GDP reached approximately USD 1.45 trillion, representing more than 30% of Southeast Asia’s total GDP. With GDP growth remaining above 5% for three consecutive years, as well as continued government investment in infrastructure and construction, demand for building materials, including waterproofing products, tile adhesives, and grouts, is expected to continue growing.

Through this acquisition, OYH will be able to build on the Aquaproof business’s established brand portfolio, local distribution network, product range, and experienced team. Combined with OYH’s capabilities in research and development, technology, product systems, and supply chain management, the partnership is expected to support further business development in Indonesia and across Southeast Asia.

Upon completion of the transaction, the shareholders of both parties will work closely together to support the continued growth and long-term development of the target companies. OYH will continue to strengthen its overseas business network, enhance its local market capabilities, and advance the sustainable development of its international operations.