Nong Bun Mak is a district of Nakhon Ratchasima province, northeastern Thailand. Nong Bunnak was created as a minor district on 1 July 198…Nong Bun Mak is a district of Nakhon Ratchasima province, northeastern Thailand. Nong Bunnak was created as a minor district on 1 July 1983 by separating the three tambons, Nong Bunnak, Saraphi, and Thai Charoen, from Chok Chai district. It was upgraded to a full district on 25 May 1989. In 2003 the district was renamed from Nong Bunnak to Nong Bun Mak.