Department of Industrial Works (DIW), Ministry of Industry, Thailand officially announced its existing chemicals inventory for the first time by the notification dated on 22 June 2020. The inventory, which updates preliminary inventory opened to the public in 2016, lists hazardous chemicals which has existed in Thailand between 1995 and 2017.
DIW has started to collect information of existing chemicals in the Kingdom by establishing a notification system of List 5.6 hazardous substances since 2015. The online database of 1st inventory enables industries to search for existing chemicals by chemical name, molecular formulas, chemical type, CAS RN, or chemical code designated by DIW. DIW is currently working on the classification of the existing chemicals into four groups, namely LCC (Low Concerned Chemicals), GC (General Chemicals), CoC (Chemicals of Concern) and CHC (Chemicals of High Concern) with the support of external consultants.
Chemical management policy of the country is currently in the transition period from hazard-based to the risk-based. The new classification is expected to be utilized for risk-based management in the future policy. DIW is considering to develop a new regulation to control “New chemicals”, however, it will not be published within 2020, according to a source in DIW.
Thailand Existing Chemicals Inventory can be accessed by:
Download original text of the Notification at
Unofficial translation of the Notification is available at