See the attached communication from the SEC on the stock certificate destruction via PREM by following this link below. It explains what happens to the destroyed certificates to protect the investors in the "unlikely" event that the certificate of the non-trading stock is needed.
https://ufile.io/8zwrsi7n
Although the KRY stock is under a cease trade order from the Ontario Securities Commision, it still remains a "listed company" that is regulated by the OSC. The OSC can assist you with guidance on what to do. FINRA can also be of help.
General inquiries
To contact the Ontario Securities Commission (OSC) Inquiries & Contact Center, please email inquiries@osc.gov.on.ca or call 1-877-785-1555.(toll-free).
General Inquiries
FINRA
301-590-6500