The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is RNZ. This MIC (RNZ) stands for the company name Rainville's Boatng Ind which is currently Out of Business. This boat manufacturer code has other company names (RNZ 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 (Rainville's Boatng Ind) is owned by P Rainville and is located at Po Box 443 in Charlestown state of Ri. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Rainville's Boatng Ind has started making boats, yachts or other watercraft as of 5/6/1985 and went out of business on (10/10/1990) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Dinghys 10-14 Ftpmr 10/90.