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                    |  |  | Q4 2020 | Q4 2021 | Q4 2022 | Q4 2023 | Q4 2024 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 469,127 | 552,481 | 468,480 | 546,177 | 579,897 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 136,142 | 92,920 | 81,876 | 198,786 | 175,421 |  
                    | |  | 1. Cash | 
 |  | 85,566 | 42,920 | 51,082 | 57,294 | 42,820 |  
                    | |  | 2. Cash equivalents | 
 |  | 50,576 | 50,000 | 30,793 | 141,493 | 132,601 |  
                    | |  | II. Short-term financial investments | 
 |  | 90,000 |  |  |  |  |  
                    | |  | 1. Trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Provision for diminution in value of trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 3. Investments holding until maturity | 
 |  | 90,000 |  |  |  |  |  
                    | |  | III. Short-term receivables | 
 |  | 107,298 | 234,515 | 223,771 | 150,002 | 177,991 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 57,839 | 159,565 | 200,662 | 131,521 | 136,192 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 118 | 208 | 5,257 | 688 | 226 |  
                    | |  | 3. Short-term intercompany receivables | 
 |  |  |  |  |  |  |  
                    | |  | 4. Receivables according to the progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 5. Receivables on short-term loans | 
 |  |  |  |  |  |  |  
                    | |  | 6. Other short-term receivables | 
 |  | 52,809 | 74,742 | 17,852 | 17,792 | 41,572 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -3,468 |  |  |  |  |  
                    | |  | IV. Inventories | 
 |  | 134,156 | 210,550 | 157,474 | 194,739 | 209,708 |  
                    | |  | 1. Inventories | 
 |  | 134,156 | 210,550 | 161,884 | 198,328 | 209,708 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  | -4,410 | -3,589 |  |  
                    | |  | V. Other current assets | 
 |  | 1,532 | 14,496 | 5,360 | 2,650 | 16,777 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  |  |  |  |  |  |  
                    | |  | 2. Deductible VAT | 
 |  | 1,375 | 14,496 | 5,360 | 2,650 | 16,777 |  
                    | |  | 3. Taxes and the State Receivables | 
 |  | 157 |  |  |  |  |  
                    | |  | 4. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other current assets | 
 |  |  |  |  |  |  |  
                    | |  | B. FIXED ASSETS AND LONG-TERM INVESTMENTS | 
 |  | 46,539 | 67,481 | 175,339 | 165,706 | 142,760 |  
                    | |  | I. Long-term receivables | 
 |  |  |  |  |  |  |  
                    | |  | 1. Long-term customer's receivables | 
 |  |  |  |  |  |  |  
                    | |  | 2. Business capital in the subsidiary units | 
 |  |  |  |  |  |  |  
                    | |  | 3. Internal long-term receivables | 
 |  |  |  |  |  |  |  
                    | |  | 4. Receivables on long-term loans | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other long-term receivables | 
 |  |  |  |  |  |  |  
                    | |  | 6. Provision for doubtful long-term receivables | 
 |  |  |  |  |  |  |  
                    | |  | II. Fixed assets | 
 |  | 43,996 | 66,255 | 171,527 | 162,009 | 132,330 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 43,996 | 66,255 | 171,527 | 162,009 | 132,330 |  
                    | |  | - Cost | 
 |  | 150,429 | 189,422 | 379,245 | 397,826 | 391,884 |  
                    | |  | - Accumulated depreciation | 
 |  | -106,432 | -123,167 | -207,718 | -235,817 | -259,554 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | III. Real Estate Investments | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term assets in progress | 
 |  |  |  |  |  |  |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term financial investments | 
 |  |  |  |  |  |  |  
                    | |  | 1. Investment in subsidiaries | 
 |  |  |  |  |  |  |  
                    | |  | 2. Investments in associated companies, joint ventures | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other investments in equity instruments | 
 |  |  |  |  |  |  |  
                    | |  | 4. Provision for diminution in value of financial long-term investments | 
 |  |  |  |  |  |  |  
                    | |  | 5. Investments holding until maturity | 
 |  |  |  |  |  |  |  
                    | |  | V. Total other long-term assets | 
 |  | 2,542 | 1,226 | 3,812 | 3,697 | 10,431 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 2,542 | 1,226 | 3,812 | 3,697 | 10,431 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 515,666 | 619,963 | 643,819 | 711,883 | 722,657 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 338,485 | 437,789 | 321,059 | 388,317 | 384,601 |  
                    | |  | I. Current liabilities | 
 |  | 338,485 | 437,789 | 321,059 | 388,317 | 384,601 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  |  |  |  | 28,441 | 22,540 |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 68,512 | 168,607 | 145,895 | 202,979 | 215,162 |  
                    | |  | 4. Advances from customers | 
 |  | 42,491 | 59,595 | 19,956 | 32,995 | 401 |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 4,108 | 6,282 | 11,545 | 14,562 | 10,364 |  
                    | |  | 6. Payables to employees | 
 |  | 39,653 | 22,232 | 16,272 | 16,527 | 14,582 |  
                    | |  | 7. Short-term accrued expenses | 
 |  |  |  |  | 21 | 33 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  |  |  |  |  |  |  
                    | |  | 11. Other short-term payables | 
 |  | 173,917 | 160,444 | 77,372 | 33,000 | 62,121 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  | 14,862 | 15,206 | 12,000 |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 9,803 | 20,629 | 35,156 | 44,586 | 47,397 |  
                    | |  | 14. Price stabilization fund | 
 |  |  |  |  |  |  |  
                    | |  | 15. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | II. Long-term liabilities | 
 |  |  |  |  |  |  |  
                    | |  | 1. Long-term payables to sellers | 
 |  |  |  |  |  |  |  
                    | |  | 2. Long-term accrued expenses | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intercompany payables on business capital | 
 |  |  |  |  |  |  |  
                    | |  | 4. Long-term intra-company payables | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other long-term payables | 
 |  |  |  |  |  |  |  
                    | |  | 6. Borrowings and long-term financial leased liabilities | 
 |  |  |  |  |  |  |  
                    | |  | 7. Convertible bonds | 
 |  |  |  |  |  |  |  
                    | |  | 8. Deferred income tax payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Provision for job loss allowance | 
 |  |  |  |  |  |  |  
                    | |  | 10. Provision for long-term payables | 
 |  |  |  |  |  |  |  
                    | |  | 11. Long-term unrealized revenue | 
 |  |  |  |  |  |  |  
                    | |  | 12. Development fund of science and technology | 
 |  |  |  |  |  |  |  
                    | |  | B. OWNER'S EQUITY | 
 |  | 177,181 | 182,174 | 322,761 | 323,566 | 338,056 |  
                    | |  | I. ShareHolder's equity | 
 |  | 177,181 | 182,174 | 322,761 | 323,566 | 338,056 |  
                    | |  | 1. Owner's investment capital | 
 |  | 50,000 | 50,000 | 50,000 | 50,000 | 50,000 |  
                    | |  | 2. Share capital surplus | 
 |  |  |  |  |  |  |  
                    | |  | 3. Bond conversion option | 
 |  |  |  |  |  |  |  
                    | |  | 4. Other owner's capital | 
 |  |  |  |  |  |  |  
                    | |  | 5. Treasury shares | 
 |  |  |  |  |  |  |  
                    | |  | 6. Differences upon asset revaluation | 
 |  |  |  |  |  |  |  
                    | |  | 7. Differences upon foreign exchange rate | 
 |  |  |  |  |  |  |  
                    | |  | 8. Investment and development funds | 
 |  | 96,140 | 102,393 | 109,267 | 109,267 | 109,267 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | 31,041 | 29,781 | 163,494 | 164,299 | 178,789 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | 6,865 | 6,865 | 145,178 | 146,017 | 146,017 |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 24,177 | 22,916 | 18,316 | 18,282 | 32,773 |  
                    | |  | 12. Investment capital resource for basic construction | 
 |  |  |  |  |  |  |  
                    | |  | 13. Assistance fund for arrangement of enterprises | 
 |  |  |  |  |  |  |  
                    | |  | 14. interest of shareholders who not control | 
 |  |  |  |  |  |  |  
                    | |  | II. Funding resources and other funds | 
 |  |  |  |  |  |  |  
                    | |  | 1. Funding resources | 
 |  |  |  |  |  |  |  
                    | |  | 2. Funding resources that form fixed assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Retrenchment provision fund | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL CAPITAL RESOURCES | 
 |  | 515,666 | 619,963 | 643,819 | 711,883 | 722,657 |      
    There is no report. |  |