BANGKOK (Reuters) - Thai stocks rose on Thursday as investors built positions in dividend-yielding stocks and exporters along with a broad weakness in the Thai baht, while Indonesian shares extended gains ahead of a rate decision by the central bank.

Stocks in Singapore and Malaysia were nearly flat while others in the region were largely range-bound as Asian shares wavered after a lacklustre performance on Wall Street overnight.

The Thai SET index was up 1.2 per cent at 1,272.14 at midday, recouping mild losses on Wednesday, amid a rally in exporters such as Delta Electronics Thailand and telecoms group Shin Corporation.

Indonesia's main index was up 0.3 per cent, with active buying in banking stocks such as Bank Rakyat Indonesia . Bank Indonesia is expected to keep its key reference rate unchanged at 7.5 per cent on Thursday.

Mining shares were up 0.4 per cent, building on Wednesday's 1.7 per cent gain after the government sought to ease a looming mineral export ban.