The labor union of SC First Bank said Friday that it plans to scale back its all-out labor strike starting late August, about two months after it launched the work stoppage in opposition to the bank\'s move to adopt a merit pay scheme. Unionized workers at the Korean unit of Standard Chartered Plc have decided to change their method of protest and plan to partially return to workplaces from Aug. 29, said Bae Kwang-jin, a spokesman for the labor union.