Sarawak Cable Bhd (SCable) and KAB Energy Holdings Sdn Bhd (KEH), a wholly-owned subsidiary of Kejuruteraan Asastera Bhd (KAB), have mutually agreed to extend the conditional period for the proposed disposal of 300,000 shares in PT Inpola Mitra Elektrindo (PT IME), which owns and operates a mini hydroelectric power plant in North Sumatera, Indonesia, for another three months to July 31.