Operating Expenses
The following table summarized the PRC operating entities’ operating expenses for the years ended December 31, 2021 and 2020:
| | | | | | | | | | | | |
| | 2021 | | 2020 | | Change in US$ | | % Change | |
Operating Expenses | | | | | | | | | | | | |
Selling expenses | | $ | 47,480 | | $ | 95,207 | | $ | (47,727) | | -50 | % |
Payroll, payroll taxes and others | | | 5,554,186 | | | 4,668,507 | | | 885,679 | | 19 | % |
Professional fees | | | 460,274 | | | 404,850 | | | 55,424 | | 14 | % |
Operating lease expense | | | 117,686 | | | 116,532 | | | 1,154 | | 1 | % |
Depreciation and amortization | | | 24,910 | | | 21,996 | | | 2,914 | | 13 | % |
Provision (reduction) for doubtful accounts, net | | | 59,625 | | | 3,786 | | | 55,839 | | 1,475 | % |
Other general and administrative | | | 471,557 | | | 316,989 | | | 154,568 | | 49 | % |
Total operating expenses | | $ | 6,735,718 | | $ | 5,627,867 | | $ | 1,107,851 | | 20 | % |
The operating expenses for the year ended December 31, 2021, were $6,735,718, an increase of $1,107,851, or 20%, from $5,627,867 in 2020. During the 2021, the average exchange rate of US$ to RMB depreciated to one US$ equals RMB6.3524 from one US$ equals RMB6.4491 in 2020. As a result, same amount of RMB in 2021 will be translated more U.S. dollars when using 2021 average exchange rate. The depreciation of US$ had a negative impact on the PRC operating entities’ operating expenses. Among the increased $1,107,851 of operating expenses, such foreign exchange effect was $475,231, or 43% of increased amount. Without foreign exchange effect, the operating expenses increased 11% compared to 2020.
Selling expenses was $47,480 in 2021, a decrease of $47,727, or 50%, from $95,207 in 2020, The PRC operating entities reduced their selling activities in 2021 due to depressed Chinese real estate market.
Payroll, payroll taxes and others were $5,554,186 in 2021, an increase of $885,679, or 19%, compared to $4,668,507 in 2020. Among the increase of $885,679, $362,260, or 41% of increased wage was due to the effect of foreign exchange rate. Without the effect of foreign exchange, the payroll related cost increased $523,419, approximately 11% increase compared to 2020. Among the other increased $885,679 payroll costs, $177,272, or 20%, was increase of wages in 2021, $172,783, or 19%, resulted from the increase of bonus in 2021, $159,303, or 18%, resulted from increase of social security taxes in 2021, the payment to social security taxes was partially waived in 2020, $14,061, or 2% was attributed to the new UK wages payment in 2021.
Professional fees consist of legal, US GAAP audit, consulting, investors relationship and other US SEC filing related fees. Professional fees were $460,274 in 2021, an increase of $55,424, or 14%, compared to $404,850 in 2020. Among the increase of $55,424, $28,744, or 52% of increased professional fees was attributed to the effect of foreign exchange. Without the effect of foreign exchange, the professional fees increased $26,680, approximately 7% increase compared to 2020. Among the other increased professional fees of $55,424, the major increase is overseas attorney fee, which increased $75,085, or 99%, compared to 2020. The increase of foreign attorney fees was offset by the decrease of other professional fees in 2021.
The PRC operating entities’ operating lease expense was $117,686, an increase of $1,154, or 1%, compared to $116,532 in 2020. $1,154 increase resulted from an increase of foreign exchange effect of $7,695, offset by the decrease of operating lease expense of $6,541. Without foreign exchange effect, the operating lease expense reduced $6,541, which resulted from two short-term leases terminated in 2021. As of December 31, 2021, the PRC operating entities had one long-term lease which became effective on January 1, 2019, and will be expired on December 31, 2023. For other leases with lease terms of 12 months or less, the PRC operating entities made an election not to recognize lease assets and lease liabilities.
Depreciation and amortization expense were $24,910 for the year ended December 31, 2021, an increase of $2,914, or 13%, from $21,966 in the year of 2020. Among the increase of $2,914, foreign exchange increased $1,629, depreciation expense increased in $1,285 or 5.8% compared to 2020. The increase of depreciation expense resulted from new equipment purchased of $6,600 and $13,416 in 2021 and 2020, respectively.
Provision for doubtful accounts expense was $59,625 in 2021, a net increase of $55,839, compared to $3,786 in 2020.