FYI, I just received from our Lab the quality report from the 3 first containers (TEMU 371561-5, CBHU 378152-6 and BSIU 219865-4).
The only visual problem is that, in all tested samples from TEMU 371561-5 we found a small black ring (see photos) at the edge of the tins, meaning a small de-tinning problem which maybe increased in the future.
Please take this information into account by trying to fix this problem in the next shipments.