Report request: I write for a magazine issued by a lumber industry trade association. We seek to educate the public on matters affecting our industry, both in the U.S. and abroad. As a major trading partner, anything involving the lumber trade in China potentially affects us and our readers.
I need a report on China's ban on the import of lumber from Australia, which started in 2020.  I am particularly interested in the reasons for the ban, including both the stated reasons and any available speculation or information about unstated reasons for the ban.  My particular focus is on Chinese lumber imports from the Australian states of New South Wales and Western Australia, but information about bans on Australian lumber generally would also be useful.

Assessment questions and gold answers:
question_text: When did China start banning Australian imports?
gold_answers: 2020
October, 2020
question_text: What Australian actions may have precipitated the trade bans imposed by China on Australian exports?
gold_answers: Australia’s rejection of Huawei communications technology
question_text: What Australian actions may have precipitated the trade bans imposed by China on Australian exports?
gold_answers: Australia's call for an international investigation of the origins of Covid-19
question_text: How did the Chinese ban affect the price of lumber?
gold_answers: Increased the price
question_text: What country was used as a new path for Australian exporters to reach the Chinese mainland?
gold_answers: Hong Kong
question_text: How have Australian exports to Hong Kong changed since the bans?
gold_answers: Exports increased
question_text: By how much have Australian exports to Hong Kong increased since the bans?
gold_answers: 100% in one year