MMI Precision (Thailand) Ltd. MMI was listed on the main board of the Singapore Exchange in 1997. The two core businesses of the Group are : The Contract Manufacturing Group (CMG) engaged in the manufacturing of precision engineering components, electro-mechanical modules and assembles ; and The System Group (SYG) which focuses on contract manufacturing, design and assembly of capital equipment. The countries where MMI has manufacturing facilities include Singapore, Malaysia, China and Thailand. In Thailand, our plants are located in Navanakorn and Korat.