Thailand Standard Industrial Classification
Thailand’s standard industrial classification. TSIC 2009 is adapted from ISIC Rev. 4: it keeps the ISIC numbering for its 21 sections, 88 divisions and most of its 441 classes, and adds 1,099 five-digit activities for Thai detail.
How a TSIC code is built
Each digit narrows the activity from the broadest sector down to a specific national industry. Here's how 01114 decomposes:
Structure at a glance
Browse sections
History
TSIC 2001 was based on ISIC Rev. 3; TSIC 2009 moved Thailand onto ISIC Rev. 4 and remains the edition in use. Because it predates ISIC Rev. 5, conversions pass through the UN’s official ISIC Rev. 4 → Rev. 5 correspondence.
Usage & importance
Used by the National Statistical Office and by the Department of Business Development for company registration, and in Thai tax and investment-promotion filings. Codes are only marked exact where the TSIC title confirms the ISIC Rev. 4 match.
Revision timeline
Convert TSIC codes to any other system
Verified crosswalks between TSIC and the other sixteen systems, both sides clickable.