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The issues raised in your letter had been assessed and clarified by the Tokyo Olympic Committee which released its report to the press and submitted its findings to the IOC.

Some of the coverages can be found here: 

• https://www.straitstimes.com/asia/east-asia/environment-group-accuses-tokyo-olympics-organisersof-using-illegally-sourced-wood
• https://www.thestadiumbusiness.com/2018/11/14/tokyo-2020-rejects-claims-timber-sourcingolympic-venues/
• https://www.insidethegames.biz/articles/1072819/tokyo-2020-defend-sustainability-after-timber-usecriticised-by-environmental-body

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