Asia's Global Premium Beverage Business. Singha Asia was established in 2015 as a wholly owned subsidiary of Boon Rawd Brewery Co. Ltd., the manufacturer of the renowned Singha and Leo Beer. Boon Rawd Brewery Co. Ltd, which was started in Thailand in 1933, intends to expand its global footprint with Singha Asia as the platform. Singha Asia’s focus is on ASEAN and Global markets, and beverage categories in which it has a strong right to win given the long and established name of Boon Rawd in these regions.