Group 1 - The Changsha Municipal Bureau of Commerce announced an adjustment to the old-for-new policy for home appliances, 3C digital products, and home renovation from a "daily limited coupon issuance" model to a "centralized coupon issuance" model [1] - The centralized coupon issuance will occur from August 22 to August 26, and on September 1, October 1, November 1, and December 1, with increased subsidy funding to meet consumer demand [1] - Consumers can receive coupons from 11:00 to 24:00 on the issuance days, with a maximum of three times per month for each category after the policy adjustment [1] Group 2 - The policy aims to enhance market demand, improve the efficiency of subsidy fund usage, and stimulate consumption potential to promote the development of related industries [2] - As of August 14, over 6.37 million participants have engaged in the old-for-new program in Changsha, with government subsidies amounting to 4.347 billion yuan and directly driving sales of 36.039 billion yuan [2]