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                    |  |  | Q4 2020 | Q4 2021 | Q4 2022 | Q4 2023 | Q4 2024 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 93,805 | 70,944 | 66,508 | 72,257 | 58,800 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 23,100 | 29,821 | 8,496 | 21,183 | 6,088 |  
                    | |  | 1. Cash | 
 |  | 23,100 | 14,821 | 8,496 | 9,183 | 4,088 |  
                    | |  | 2. Cash equivalents | 
 |  |  | 15,000 |  | 12,000 | 2,000 |  
                    | |  | II. Short-term financial investments | 
 |  | 7,000 |  | 2,000 | 2,200 | 33,200 |  
                    | |  | 1. Trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Provision for diminution in value of trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 3. Investments holding until maturity | 
 |  | 7,000 |  | 2,000 | 2,200 | 33,200 |  
                    | |  | III. Short-term receivables | 
 |  | 61,952 | 38,457 | 53,370 | 43,342 | 14,987 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 59,851 | 35,855 | 48,984 | 40,477 | 13,591 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 286 | 669 | 779 | 1,205 | 1,214 |  
                    | |  | 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 | 
 |  | 3,441 | 3,559 | 5,231 | 3,286 | 1,808 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -1,625 | -1,625 | -1,625 | -1,625 | -1,625 |  
                    | |  | IV. Inventories | 
 |  | 1,573 | 2,193 | 2,159 | 5,324 | 4,402 |  
                    | |  | 1. Inventories | 
 |  | 1,573 | 2,193 | 2,159 | 5,324 | 4,402 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  |  |  |  |  
                    | |  | V. Other current assets | 
 |  | 181 | 472 | 484 | 208 | 123 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  | 181 | 360 | 146 | 208 |  |  
                    | |  | 2. Deductible VAT | 
 |  |  |  | 338 |  |  |  
                    | |  | 3. Taxes and the State Receivables | 
 |  |  | 112 |  |  | 123 |  
                    | |  | 4. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other current assets | 
 |  |  |  |  |  |  |  
                    | |  | B. FIXED ASSETS AND LONG-TERM INVESTMENTS | 
 |  | 109,289 | 111,192 | 105,091 | 100,650 | 95,459 |  
                    | |  | 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 | 
 |  | 103,289 | 102,897 | 98,651 | 94,220 | 90,110 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 103,289 | 102,897 | 98,651 | 94,220 | 90,110 |  
                    | |  | - Cost | 
 |  | 146,725 | 150,476 | 150,680 | 151,246 | 151,246 |  
                    | |  | - Accumulated depreciation | 
 |  | -43,436 | -47,578 | -52,029 | -57,027 | -61,136 |  
                    | |  | 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 | 
 |  | 609 |  |  |  |  |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  | 609 |  |  |  |  |  
                    | |  | IV. Long-term financial investments | 
 |  | 5,000 | 7,000 | 5,000 | 5,000 | 5,000 |  
                    | |  | 1. Investment in subsidiaries | 
 |  |  |  |  |  |  |  
                    | |  | 2. Investments in associated companies, joint ventures | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other investments in equity instruments | 
 |  | 5,000 | 5,000 | 5,000 | 5,000 | 5,000 |  
                    | |  | 4. Provision for diminution in value of financial long-term investments | 
 |  |  |  |  |  |  |  
                    | |  | 5. Investments holding until maturity | 
 |  |  | 2,000 |  |  |  |  
                    | |  | V. Total other long-term assets | 
 |  | 391 | 1,294 | 1,441 | 1,431 | 349 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 391 | 1,294 | 1,441 | 1,431 | 349 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 203,095 | 182,135 | 171,600 | 172,908 | 154,259 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 58,638 | 38,770 | 31,959 | 32,159 | 19,200 |  
                    | |  | I. Current liabilities | 
 |  | 58,638 | 38,770 | 31,959 | 32,159 | 19,200 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  |  |  | 1,555 |  |  |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 37,337 | 19,685 | 18,089 | 16,746 | 13,429 |  
                    | |  | 4. Advances from customers | 
 |  | 519 | 279 | 219 | 15 | 64 |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 2,331 | 3,397 | 2,091 | 2,184 | 299 |  
                    | |  | 6. Payables to employees | 
 |  | 13,111 | 9,853 | 5,422 | 8,132 | 1,394 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 174 |  |  |  |  |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  |  |  |  |  |  |  
                    | |  | 11. Other short-term payables | 
 |  | 4,956 | 5,325 | 4,583 | 4,985 | 4,013 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 210 | 232 |  | 98 |  |  
                    | |  | 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 | 
 |  | 144,457 | 143,365 | 139,640 | 140,748 | 135,060 |  
                    | |  | I. ShareHolder's equity | 
 |  | 65,831 | 64,739 | 61,014 | 62,122 | 56,434 |  
                    | |  | 1. Owner's investment capital | 
 |  | 57,500 | 57,500 | 57,500 | 57,500 | 57,500 |  
                    | |  | 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 | 
 |  | 2,065 | 2,689 | 3,372 | 3,414 | 3,414 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | 6,266 | 4,550 | 142 | 1,208 | -4,481 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | 349 |  |  |  |  |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 5,917 | 4,550 | 142 | 1,208 | -4,481 |  
                    | |  | 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 | 
 |  | 78,626 | 78,626 | 78,626 | 78,626 | 78,626 |  
                    | |  | 1. Funding resources | 
 |  |  |  |  |  |  |  
                    | |  | 2. Funding resources that form fixed assets | 
 |  | 78,626 | 78,626 | 78,626 | 78,626 | 78,626 |  
                    | |  | 3. Retrenchment provision fund | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL CAPITAL RESOURCES | 
 |  | 203,095 | 182,135 | 171,600 | 172,908 | 154,259 |      
    There is no report. |  |