Thai PTT sets coupons on 30 bln baht bonds

BANGKOK, July 2 (Reuters) - Thailand's top energy firm, PTT PCL PTT.BK, has set coupons on bonds worth 30 billion baht ($881 million) to be sold later this month, underwriters said on Thursday.

The unsecured bonds are divided into three tranches, with the first tranche of three-year bonds offering a fixed coupon of 3.20 percent, two underwriters who declined to be named told Reuters.

The seven-year tranche would carry a fixed coupon of 4.25 percent in the first five years and a fixed 5.25 percent in the sixth and seventh years, they said.

The 15-year tranche would have a fixed coupon of 4.25 percent in the first five years, 5.50 percent from the sixth to tenth years, and 5.75 percent for the remaining years.

"For the 15-year issue, investors are able to redeem the bonds before maturity after ten years have elapsed," one underwriter said.

The company planned to sell the bonds mostly to retail investors between July 27 and 30, he added.

The proceeds will be used to provide liquidity and refinance maturing debt.

Among the eight banks and two brokers mandated as underwriters are Bangkok Bank BBL.BK, Krung Thai Bank KTB.BK, Kasikornbank KBAN.BK, Siam Commercial Bank SCB.BK and TMB Bank TMB.BK.

PTT, which is majority-owned by the government, runs Thailand's gas pipeline monopoly and controls more than 30 petroleum, gas exploration, petrochemical and refinery businesses. ($1=34.05 Baht) (Reporting by Satawasin Staporncharnchai; Writing by Arada Therdthammakun; Editing by Alan Raybould)