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Related party transactions

12 Months Ended

Sep. 30, 2020

8. Related party transactions

During the year

ended September 30, 2020, 2019, and 2018, the Company purchased raw materials from a related party investor in the amount of

$3.4

million, $3.2 million, and $2.3 million, respectively. Payable balances and cash receipts and receivable balances with the related party were immaterial as of September 30, 2020, 2019, and 2018.