1. Your crew gets a FREE OPITO Approved Basic Hydrogen Sulphide (BH2S) when they take any course that falls under BOSIET, FOET, and HUET.

2. The FREE BH2S course must be taken with BOSIETT/FOET/HUET course.

3. When emailing to CTSI’s reservation team, user promo code: FREE BH2S to avail of the promo.

4. It is non-transferable and non-convertible into cash.

Course booking and other inquiries?

You may email us at reservation@ctsi.com.ph or call us at +632 8524–0572