Which would mean you'd need 270 boxes of chips to equal 2.1 million.  I've never seen a photograph of 270 boxes.

There may be other evidence that that many have been made, but there's never been a photograph of all of them in one place, as far as I know.

Someone posted a link showing tracking data on 135 boxes somewhere - that totals 1.05 million chips, about the same number that Yifu claims to have produced.