SMEs in the manufacturing sector having linkages with a value chain to export are interesting. The export in the CLMV countries is growing continuously, around 20% per year during the past 10 years. This has shown a significant opportunity for Thai SMEs to expand investment into these countries. Even though the ratio of direct exports by SMEs in CLMV countries is still considerably lower than Thailand's, the CLMV countries have increased production that indirectly connects with exports, especially among medium-size companies in Vietnam and Laos. This shows the ability of SMEs to build production networks, especially in the form of subcontracting for multinational corporations. This specialization seems likely to increase, resulting in more clustering of SMEs in industries with sizeable exports.