Yontrakarn Metal Work Co., Ltd. established in 1971, is the manufacturer and distributor of brass and iron bilge pump, brass and stainless steel fittings, and equipment for sea-going vessels. The products are unique and delicate style.

At the beginning, the company has started manufacturing spare parts for ship engines. Later on, as the company started producing brass fittings and brass bilge pump under the brand name of YK Yontrakarn, the company stopped manufacturing spare parts for ship engines. As the company focuses on the quality of products and gains access to vessels industry, the products are very well popular. Thereafter, the company has expanded its line of products such as cast iron bilge pump, and other parts for fishing vessels. The business has grown continuously, today Yontrakarn Metal Work co., Ltd. is the leading company in bilge pump market in Thailand's fishing vessels industry.