Meanwhile, Meralco has sought an extension of its transition supply contract (TSC) with the National Power Corporation (Napocor) to secure adequate power supply. The company is in talks with the Power Sector Assets and Liabilities Management Corporation – the government corporation in charge of Napocor – for the extension. Though the TSC with Napocor expired in December 2012, it was extended for another two months. However, Meralco is now seeking a further extension of the contract to June 25, 2013. Under the proposed extension, Meralco is also requesting for an additional 100 MW. The company buys a significant portion of its power requirements from Napocor through TSCs.