The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is ZWK. This MIC (ZWK) stands for the company name West Kootenay Fiberglass which is currently Out of Business. This boat manufacturer code has other company names (ZWK sometimes goes by these name(s) if applicable: , , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (West Kootenay Fiberglass) is owned by and is located at in Carthlegar state of Bc. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. West Kootenay Fiberglass has started making boats, yachts and other watercraft as of 1/1/1979 and went out of business on (1/1/1979) in the following country: CANADA.
More details at the US Coast Guard.