The cost to ship goods on Hawaii’s dominant ocean cargo transportation company will rise an average of 5.5 percent early next year under a rate hike announced today by Matson Inc.

Matson said it will raise the price to ship a container to Hawaii from the mainland by $175 and also raise an associated terminal handling charge by $50 per container effective Jan. 5.

The company said the increases were identical to rate hikes in each of the last two years and will help offset higher operating costs and support ongoing investments in the business.