The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is ZFD. This MIC (ZFD) stands for the company name D K Sumner Fiberglassing Co which is currently In Business. This boat manufacturer code has other company names (ZFD 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 (D K Sumner Fiberglassing Co) is owned by and is located at 59 Metcalfe in London state of On. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. D K Sumner Fiberglassing Co has started making boats, yachts or other watercraft as of 8/30/1982.
More details at the US Coast Guard.