Following two successful joint calls, National Astronomical Research Institute of Thailand (NARIT) and STFC are happy to announce the third collaboration to promote new partnerships in Capacity Building in Software and Hardware Infrastructures, and Data Handling through Astronomy. The two previous STFC-NARIT calls funded through the Newton Fund have supported projects that focus on instrumentation development, giving opportunities to Thai researchers, engineers and technicians to develop much-needed skills and work closely with UK counterparts. This third call will welcome both the extension of previously funded projects as well as new projects that will build on the capabilities that both countries have in astronomy.