| Cash flows from operating activities: | |
| Net cash provided by operating activities | 16.29M |
| Cash flows from investing activities: | |
| Payment for acquisitions of Jinchuan and Hongtai | |
| Cash acquired from acquisitions of Jinchuan and Hongtai | |
| Purchases of property and equipment | -423.62K |
| Net cash used in investing activities | -423.62K |
| Cash flows from financing activities: | |
| Payment for acquisition of Jinchuan | 0 |
| Borrowing (repayment) on revolving line of credit | |
| Repayment on bank loans | -13.44M |
| Repayment of notes payable | |
| Proceeds from issuance of common stock and warrants | 573.21K |
| Transaction costs paid in connection with issuance of common stock | |
| Net cash provided by (used in) financing activities | 906.11K |
| Effect of foreign currency exchange rate changes on cash | 428.22K |
| Net increase in cash | |
| Cash at beginning of period | |
| Cash at end of period | |
| Supplemental disclosure of cash flow information: | |
| Interest paid | |
| Income taxes paid | 15.26M |
| Accrual for the acquisition of Jinchuan | |
| Issuance of common stock in connection with the acquisition of Hongtai | |