AZKLF (BRN USA) down 34%, page-37

To the best of my knowledge, there is no connection between BRN and AZKLF and they do not follow the same pattern.

AZKLF isn't an ADR. It's a penny stock 'pink sheet' listed on the OTC. It probably has a few dozen holders.

What Are Pink Sheets?

Pink sheets refer to a listing service for stocks that trade via over-the-counter (OTC). Pink sheet listings are companies that are not listed on a major exchange like the New York Stock Exchange (NYSE) or Nasdaq. The majority of stocks sold over-the-counter are low-priced penny stocks, meaning that they trade for less than five dollars per share. However, there are a large number of companies not considered penny stocks that merely opt to sell their shares through the over-the-counter network to keep share distribution activity inexpensive. Pink Sheets is also a private company that works with broker-dealers to market the shares of OTC equities they represent.

https://www.investopedia.com/terms/p/pinksheets.asp