Fitch changed on Monday to "positive" from "stable" the outlook of Thai industrial holding Siam Cement PCL while affirming its national long- and short-term ratings at A(tha) and F1(tha), respectively.

The agency also decided to keep the rating on the company’s senior unsecured debentures at A(tha).

Additionally, Fitch attached a national long-term rating of A(tha) to the unsecured debentures of up to THB15bn (USD487.7m/EUR362.4m), due in 2015, with proceeds to be used for refinancing SCC’s maturing debentures.