Valid returns by Acer suppliers of CDP surveys reached average disclosure score was 78, a marked improvement on 2014 and above the global average of 60; overall performance was ranked a C grade, again surpassing the global average of D. Overall carbon management, carbon reduction results, and green energy usage status of tier one and tier two suppliers account for our supplier CSR scorecard, these evaluations also include whether or not the group's greenhouse gasses inventory and verification have been completed for the year and whether or not the supplier reached its intensity reduction target of 5% and makes use of green electricity.