I've been lucky to have obtained such information from two such companies in Europe and the United Kingdom.

Here's one example (edited); others are archived (dates and quantities; serial numbered).

"Dear Mr Benedict,

Many thanks for your letter of 23 September.

My department is responsible for the security and destruction of obsolete table chips and plaques. Over the past two years our 18 casinos have re-chipped, and we have destroyed literally hundreds of thousands of obsolete chips and plaques.

I.. J.....

Head of Security"

Of course this is just one gaming jurisdiction of many.