Unique Mining Services Public Company Limited is a Thailand-based company engaged in importing and distributing coal for domestic industrial uses. The Company imports bituminous and sub-bituminous coal from Indonesia and supplies it to Thai producers. The Company's main customers are from various industries, including food and beverage, pulp, paper and textile industries. The Company also operates warehousing businesses, including Chaimongkol warehouse in Samutsakhon, Suansom warehouse in Samutsakhon, and Nakornluang warehouse in Ayudhaya. The Company's subsidiaries includes UMS Coal Briquette Company Limited, producing coal briquettes; UMS Lighter Company Limited, operating marine transportation by lighter; UMS Transport Company Limited, operating land transportation by truck, and UMS Port Services Company Limited, operating jetty business.