China will double the amount of ultra-long-term special treasury bonds this year from last year to CNY300 billion (USD41.5 billion), Li Chunlin, deputy director of the National Development and Reform Commission, said today. The funds will go towards supporting the upgrading of consumer goods through trade-ins and to add more categories of goods eligible for trade-ins. The first batch of special government bonds, worth CNY81 billion (USD11 billion), was already issued in early January.