In the Philippines, it is the most popular root beer brand on the market. It replaced Coca-Cola's Barq's in most fast food chains. Sarsi, then owned by RFM corporation's Cosmos Bottling Corporation, was sold to Coca-Cola Bottlers Philippines, Inc., which became a subsidiary of San Miguel Corporation in 2001, but was sold in 2006. Its main competitor is Mug from PepsiCo Their wide distribution to supermarkets and sari-sari stores, and their pricing made them the most available, and hence most-popular. Sarsi can be found in many Filipino stores.
In Taiwan, the "HeySong Sarsi" (黑松沙士，BlackPine Sarsaparilla) is also known as the "Faygo of Taiwan". It is bottled by the HeySong Corporation in Taipei.
The HeySong Sarsaparilla beverage is available in three flavor variations:
- Regular - Regular Sarsi flavor.
- Sweetie Energy - Sweet and mellow, rather like A&W cream soda, but with added guarana extract.
- Salty - Significantly more salty and bitter aftertaste, like Barq's rootbeer in the US.