On 30 August 2019, Deputy Minister of Commerce Mr.Weerasak Wangsuphakitkoson together with The Department of International Trade Promotion and Ministry of Commerce's team visited Sanguan Wongse Industried to see comprehensive Tapioca starch Processing and how company can use the waste and waste water from Tapioca production to produce bio-gas for using as heat energy to produce the steam to use in production process and also using to produce electricity to sell to the Provincial Electricity Authority which help company reduce production costs and earn income from electricity sales, and most importantly can also solve environmental problems.