Transaction services fee and other related income increased to RMB20.9 million (US$3.3 million) from RMB6.6 million for the third quarter of 2020, mainly as a result of the reassessment of variable consideration.
Sales income and others decreased to RMB7.3 million (US$1.1 million) from RMB139.0 million for the third quarter of 2020, mainly due to the decrease in sales related to the Wanlimu e-commerce platform, which we are in the process of winding down.
Sales commission fee decreased by 55.5% to RMB8.0 million (US$1.2 million) from RMB18.1 million for the third quarter of 2020, due to the decrease in the amount of merchandise credit transactions.
Total operating costs and expenses increased to RMB273.2 million (US$42.4 million) from RMB100.0 million for the third quarter of 2020.
Cost of revenues decreased by 47.4% to RMB104.6 million (US$16.2 million) from RMB198.8 million for the third quarter of 2020, primarily due to the decrease in costs associated with the loan book business and the decrease in cost of goods sold related to the Wanlimu e-commerce platform.
Sales and marketing expenses decreased by 49.3% to RMB32.9 million (US$5.1 million) from RMB64.8 million for the third quarter of 2020, primarily due to the decrease in marketing promotional expenses.
General and administrative expenses increased by 170.4% to RMB157.7 million (US$24.5 million) from RMB58.3 million for the third quarter of 2020, as a result of the increase in staff salaries primarily relating to WLM Kids business.
Research and development expenses decreased by 21.6% to RMB40.1 million (US$6.2 million) from RMB51.1 million for the third quarter of 2020, as a result of the decrease in staff salaries.
Provision for receivables and other assets was a reversal of RMB19.2 million (US$3.0 million), compared to a loss of RMB89.5 million for the third quarter of 2020, mainly due to the decrease in past-due on-balance sheet outstanding principal receivables compared to the third quarter of 2020.
As of September 30, 2021, the total balance of outstanding principal and financing service fee receivables for on-balance sheet transactions for which any installment payment was more than 30 calendar days past due was RMB132.7 million (US$20.6 million), and the balance of allowance for principal and financing service fee receivables at the end of the period was RMB308.9 million (US$47.9 million), indicating M1+ Delinquency Coverage Ratio of 2.3x.