Guam - Matson Navigation says it will raise the fuel surcharge for shipments between the U.S. West Coast and Hawaii by 8.5% next month. This is the biggest increase since the charge was instituted 12 years ago.

According to the Honolulu Star Advertiser, the jump will boost the surcharge to 35%, up from 26.5% on March 27. The surcharge for its service to Guam and the CNMI is due to rise to 36.5% from 28%.