The Multi-Stakeholder Initiative for Accountable Supply Chain of Thai Fisheries or MAST was established in March 2016 as a coalition to address the root causes of human trafficking and IUU fishing in the Southeast Asia fishing sector. MAST combines the expertise of experienced on-the-ground experts from civil society with well-regarded professional consultancies to activate the positive solutions for fisher communities. Partnering with Pelagic Data Systems, MAST has introduced an affordable vessel monitoring system (VMS) for use in small scale Thai fishing vessels, 10-30 Gross Tonnage in particular, with the aim of developing a monitoring system for IUU and labor abuses at community level in order to create transparency and accountability.