The April 7, 1996 issue of the Philippine Daily Inquirer carried an advertisement of the now-discontinued Jolt Cola. It can be noted that the soft drink brand was license by The Jolt Company, U.S.A., to Cosmos Bottling Corporation. The latter is a subsidiary of RFM Corporation.
I suppose that the model is the actor Diether Ocampo. After searching the Internet, I found out that Jolt Cola was one of the many products in which he was commercial model.
Diether Ocampo, is a contract artist of television network ABS-CBN. His first big break in show business started in June 1996 with the launch of the teen-oriented show Gimik. Since then, Ocampo has been often cast in leading man roles.
Going back to the advertisement, it says "To Stay Awake, Shock Yourself! Or Get a Jolt!" Jolt Cola also brandishes the claim that it "Outperks Leading Colas!" The cola brand, however, stayed not too long in the market. I did not have the chance to verify this claim.