Kraisi Sirirungsi

Part of The Lanna Resources Public Co., Ltd., PT Singlurus Pratama is an Indonesian company that engages in coal mining activities. The company is based in Jakarta, Indonesia. Srihasak Arirachakaran has been the CEO of the company since 2008.

Part of The Lanna Resources Public Co., Ltd., PT Citra Harita Mineral is an Indonesian company that explores and mines for coal. The company is based in Jakarta Selatan, Indonesia. Pilas Puntakosol has been the CEO of the company since 2004. PT Citra Harita Mineral was acquired by The Lanna Resources Public Co., Ltd. on March 30, 2005 for $0.06 million.

PT Lanna Harita Indonesia operates coal mines and supplies coal. It is a joint venture between Thai, Singaporean and Indonesian investors and has a proven deposit of 18 mt in Kutai. The company is headquartered in Jakarta, Indonesia

Part of The Lanna Resources Public Co., Ltd., Lanna (Singapore) Pte Ltd. is an investment holding vehicle based in Singapore, Singapore.

Lanna Power Generation Co. Ltd. provides electric services. The private company is based in Pathum Wan, Thailand. Srihasak Arirachakaran has been the CEO of the Thai company since 2016.