BANGKOK - Thailand's stock market .SETI ended 3 percent higher on Tuesday as investors bought energy big caps .SETEN and banks .SETB on hopes of an early, favourable conclusion to a court case that has halted some industrial activities.

An administrative court said it would rule on Wednesday on environmental health concerns that led to the suspension of some activities at the country's biggest industrial estate.

The main index provisionally ended up 3.04 percent at 710.01, led by buying in energy giant PTT PTT.BK, which was up 5.8 percent at 237 baht. Siam Cement SCC.BK gained nearly 4 percent and Bangkok Bank BBL.BK edged 1.3 percent higher. ($1 =33.2 Baht) (Reporting by Ploy Ten Kate; Editing by Alan Raybould)