The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is JSK. This MIC (JSK) stands for the company name Jet Surfin' Usa Llc which is currently In Business. This boat manufacturer code has other company names (JSK sometimes goes by these name(s) if applicable: , , Samson Marine Of Ct (oob), or James S Krogen & Co (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 (Jet Surfin' Usa Llc) is owned by Eric Martin and is located at 17000 Evergreen Hills Dr in Reno state of Nv. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Jet Surfin' Usa Llc has started making boats, yachts or other watercraft as of 8/31/2016.
More details at the US Coast Guard.