Does anyone knows a trustable brand (or source) on LiIon for big quantities?

Hello there guys. My first topic here.
I´m an opticts importer from USA - EU and Asia for Brasil and we are eager to import a full container of 18650 and 21700 LiIon cells to build packs for eFoil and bicicles. Does anyone have a trustable contact of a respectable and honest brand or even a trustable and honest contact on Alibaba?
Thanks in advance.