The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is SLH. This MIC (SLH) stands for the company name Sea-lion Boats which is currently In Business. This boat manufacturer code has other company names (SLH sometimes goes by these name(s) if applicable: , , , or Sandpiper Laminates (oob)). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Sea-lion Boats) is owned by Nathan Hiemstra and is located at 656 28th Ave in Hudsonville state of Mi. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Sea-lion Boats has started making boats, yachts or other watercraft as of 9/4/2018.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Oob 5/7/1976 520 Grade St Kelso Wa 98626.