The Trump administration’s tumultuous relationship with China is proving to be a major issue for some companies in Alaska’s forest products industry. That includes in Haines, where a timber sale that was supposed to kick off this spring has stalled amid China’s ban on US log imports. China announced the ban in March, citing concerns over pests like bark and longhorn beetles in US shipments. The move came the same day that China imposed retaliatory tariffs on certain US agricultural products amid President Donald Trump’s global trade war. The decision has had sweeping effects on companies that harvest logs in Alaska and ship them overseas. …The trade disputes have also hit Canadian lumber company Transpac Group. The company in March largely shut down its site on Afognak Island, just north of Kodiak, citing the ban and failed efforts to divert its product to other markets.