The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is HMT. This MIC (HMT) stands for the company name Halmatic Ltd which is currently Out of Business. This boat manufacturer code has other company names (HMT 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 (Halmatic Ltd) is owned by R G Rutishaus and is located at 178 Sx Thomas Way in Tiburon state of Ca. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Halmatic Ltd has started making boats, yachts or other watercraft as of 11/16/1972 and went out of business on (11/22/1982) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: In Bus 11/72, N M Hall, Havant(st), Hampshire England -sailimporter Out Of Bus 11/82.