On 23-24 April 2025, the RiceGX-SATREPS project held a training workshop for the usage of gas chromatograph (GC) at the Royal University of Agriculture (RUA), Phnom Penh. The project introduced a GC equipped with an autosampler to the RUA and is planning to use it for efficient analysis of greenhouse gas concentrations in monitoring study and carbon credit projects. The trainees comprehensively learnt the basic usage of GC through a lecture on GC detection principles, etc., practice to start up GC and to use software for data processing. The project aims to develop specialists for GC analysis through practical training.