logo of HQ escalator step chain

Today our quality inspector found a problem on our step chain, she found the logo of step chain is not the same as before, so she feedback to our purchase colleague, then our purchaser ask this thing from the factory, and we got the final result: HQ's escalator step chain have 2 kinds of logos, one is only the earth, and another is the earth add H, and they are all orginal, the photos as follows: