On 18 April 2017, Bangkok Industrial Gas Co., Ltd. (BIG), led by Mr. Piyabut Charuphen, Managing Directors, and Mr. Chaiwat Niyomkarn, Executive Advisor, together with the representatives of management and staff, have co-hosted religious ceremonies of monks delivering prayers dedicated to the late King Bhumibol Adulyadej to express gratefulness towards the beloved monarch and devote in his honor at Dusit Maha Prasat Throne Hall in the Grand Palace, Bangkok.