I would suggest you avoid that and stick to the Global tier lists because the characters are changing to balance the Global version. And, recently, Cobalt-B has higher Shatter and Flame resonance, both of which are not present in the Chinese version. If I had gone by the Chinese version, then Cobalt-B would have ended up either in A tier or B tier, but now she has a Flame resonance that has instantly boosted her to S-tier. It's speculated that Ruby might be coming into the game once Vera launches, but now, with the incoming changes to characters in the Global launch, we may see shuffling in Tier lists. I would stand by my claim that the Tier lists won't match the exact Chinese versions because the characters are having nerfs and buffs in the Global launchs.