ASEAN is the biggest trading partner of Guangdong, one of the major production bases in the world.

The coal sub-index slid 5.6 percent to 1,071.72.

Japan ferrosilicon (Si≤55%) imports increase 0.31% YoY from January to April 2022.

They also said the industry has accelerated structural upgrades to pursue greener growth pathways.

The city's total import and export value with ASEAN countries hit 52.3 billion yuan ($7.74 billion) from January to April, up 15.1 percent, year-on-year.

To some extent, the program has proved the role of carbon monitoring in helping calculate carbon emissions, he said.

From January to April, Heilongjiang's imports rose 38.9 percent to 63.73 billion yuan, while its exports grew 15.6 percent to 14.04 billion yuan, according to the Harbin customs in the provincial capital.

The figure accounted for 36.9 percent of the province's total imports and exports.