China intends to curb the overproduction of solar panels domestically by implementing tougher capital requirements. The Ministry of Industry released a new regulation mandating that solar companies must maintain a minimum capital ratio of 30 percent for both expansions and new production facilities. Previously, the requirement was 20 percent. The Ministry did not provide a more detailed definition of the capital ratio. Additionally, new efficiency standards for various types of solar module production were established. Comments on the draft regulation can be submitted until July 15.