Surfboard makers including Southern California Sports Industries and Dewey Weber have started restructuring their supply chains in response to U.S. imports from China where 15% tariffs are due from Sept. 1. Total U.S. imports of surfboards grew 10.1% year over year in the 12 months to Jun. 30 to reach $68 million. While imports from China represented 68.8% of seaborne shipments in the 12 months to Jul. 31 there’s already been a 7.6% year over year decline in the three months to Jul. 31. Instead imports from Taiwan have surged, rising 23.4% over the same period.