Tongda Group (HKG:0698) expects an attributable profit of between HK$60 million and HK$65 million for the six months ended June 30, up 367% to 406% from HK$12.8 million a year prior, a Wednesday Hong Kong bourse filing said.

The electronic component maker attributed the forecast to significantly lower finance costs and bank charges, R&D expenses in the high-precision components business after its disposal, and a drop in depreciation expenses.