Guinness Anchor Bhd (GAB) was formed in 1989, with the merger of Guinness Malaysia Bhd and Malayan Breweries (Malaya) Sdn Bhd, whose parent companies were Malayan Breweries Ltd (the present Asia Pacific Breweries Ltd) and Guinness Overseas Ltd (GOL).

GOL is owned by Diageo Plc, the world's leading premium drinks Group with an outstanding collection of brands across spirits, wine and beers.

Following the merger, GAB was listed on the main board of Kuala Lumpur Stock Exchange during the same year.

GAB operates the Sungei Way Brewery which started operations in 1965. Located in Selangor, the brewery occupies a land area of 23.72 acres and oversees Tiger, Guinness, Heineken, Anchor Smooth, Anchor Strong, Kilkenny, Anglia Shandy and Malta in the country.

GAB is the first and only brewery in Malaysia to receive the Hazard Analysis Critical Control Point (HACCP) certification and ISO 9001:2000 Quality Certification from Malaysia's Ministry of Health.

Today, GAB is the clear market leader of the Malaysian beer and stout industry, with 55% of the market share.