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                    |  |  | Q4 2020 | Q4 2021 | Q4 2022 | Q4 2023 | Q4 2024 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 321,498 | 362,064 | 352,242 | 242,375 | 152,987 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 31,441 | 11,209 | 43,227 | 18,587 | 24,166 |  
                    | |  | 1. Cash | 
 |  | 31,441 | 11,209 | 43,227 | 18,587 | 7,166 |  
                    | |  | 2. Cash equivalents | 
 |  |  |  |  |  | 17,000 |  
                    | |  | II. Short-term financial investments | 
 |  |  | 17,200 |  |  | 16,000 |  
                    | |  | 1. Trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Provision for diminution in value of trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 3. Investments holding until maturity | 
 |  |  | 17,200 |  |  | 16,000 |  
                    | |  | III. Short-term receivables | 
 |  | 81,200 | 63,007 | 72,900 | 86,270 | 7,294 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 80,620 | 50,856 | 71,874 | 88,884 | 8,957 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 124 | 11,576 | 692 | 242 | 1,424 |  
                    | |  | 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 | 
 |  | 456 | 575 | 334 | 499 | 268 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  |  |  |  | -3,356 | -3,356 |  
                    | |  | IV. Inventories | 
 |  | 197,793 | 255,347 | 229,402 | 137,518 | 104,271 |  
                    | |  | 1. Inventories | 
 |  | 197,793 | 255,347 | 229,402 | 137,518 | 104,271 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  |  |  |  |  
                    | |  | V. Other current assets | 
 |  | 11,065 | 15,301 | 6,713 |  | 1,257 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  |  |  |  |  |  |  
                    | |  | 2. Deductible VAT | 
 |  | 10,557 | 14,860 | 6,713 |  | 1,257 |  
                    | |  | 3. Taxes and the State Receivables | 
 |  | 508 | 441 |  |  |  |  
                    | |  | 4. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other current assets | 
 |  |  |  |  |  |  |  
                    | |  | B. FIXED ASSETS AND LONG-TERM INVESTMENTS | 
 |  | 67,470 | 75,903 | 68,783 | 59,257 | 57,049 |  
                    | |  | 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 | 
 |  | 51,928 | 69,491 | 64,030 | 58,792 | 55,524 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 46,796 | 64,946 | 60,108 | 55,336 | 52,202 |  
                    | |  | - Cost | 
 |  | 198,689 | 231,828 | 236,369 | 237,686 | 239,049 |  
                    | |  | - Accumulated depreciation | 
 |  | -151,893 | -166,882 | -176,261 | -182,350 | -186,848 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  | 5,132 | 4,545 | 3,922 | 3,455 | 3,323 |  
                    | |  | - Cost | 
 |  | 7,541 | 7,541 | 7,541 | 7,608 | 7,668 |  
                    | |  | - Accumulated depreciation | 
 |  | -2,410 | -2,996 | -3,619 | -4,153 | -4,346 |  
                    | |  | III. Real Estate Investments | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term assets in progress | 
 |  | 13,824 | 3,410 |  |  |  |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  | 13,824 | 3,410 |  |  |  |  
                    | |  | 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 | 
 |  | 1,718 | 3,002 | 4,753 | 465 | 1,525 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 1,718 | 3,002 | 4,753 | 465 | 1,525 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 388,968 | 437,967 | 421,025 | 301,631 | 210,036 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 262,450 | 307,850 | 282,136 | 161,108 | 55,326 |  
                    | |  | I. Current liabilities | 
 |  | 254,450 | 301,050 | 276,236 | 156,708 | 52,326 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  | 244,782 | 241,079 | 257,309 | 114,126 | 38,118 |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 676 | 28,755 | 453 | 21,015 | 1,258 |  
                    | |  | 4. Advances from customers | 
 |  | 1,098 | 21,611 | 1,356 | 41 |  |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  |  | 170 | 1,609 | 9,501 | 1,456 |  
                    | |  | 6. Payables to employees | 
 |  | 1,408 | 2,354 | 2,180 | 2,851 | 3,113 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 36 | 949 | 6,645 | 2,740 | 68 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  |  |  |  |  |  |  
                    | |  | 11. Other short-term payables | 
 |  | 4,219 | 3,902 | 4,464 | 4,259 | 6,861 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 2,231 | 2,231 | 2,221 | 2,175 | 1,451 |  
                    | |  | 14. Price stabilization fund | 
 |  |  |  |  |  |  |  
                    | |  | 15. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | II. Long-term liabilities | 
 |  | 8,000 | 6,800 | 5,900 | 4,400 | 3,000 |  
                    | |  | 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 | 
 |  | 8,000 | 6,800 | 5,900 | 4,400 | 3,000 |  
                    | |  | 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 | 
 |  | 126,518 | 130,117 | 138,889 | 140,523 | 154,710 |  
                    | |  | I. ShareHolder's equity | 
 |  | 126,518 | 130,117 | 138,889 | 140,523 | 154,710 |  
                    | |  | 1. Owner's investment capital | 
 |  | 100,000 | 100,000 | 100,000 | 116,986 | 116,986 |  
                    | |  | 2. Share capital surplus | 
 |  |  |  |  |  |  |  
                    | |  | 3. Bond conversion option | 
 |  |  |  |  |  |  |  
                    | |  | 4. Other owner's capital | 
 |  |  |  |  |  |  |  
                    | |  | 5. Treasury shares | 
 |  | -75 | -75 | -75 | -75 | -75 |  
                    | |  | 6. Differences upon asset revaluation | 
 |  |  |  |  |  |  |  
                    | |  | 7. Differences upon foreign exchange rate | 
 |  |  |  |  |  |  |  
                    | |  | 8. Investment and development funds | 
 |  | 17,261 | 17,261 | 17,261 | 17,261 | 17,261 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  | 3,650 | 3,650 | 3,650 | 3,650 | 3,650 |  
                    | |  | 11. After tax undistributed profit | 
 |  | 5,682 | 9,281 | 18,053 | 2,701 | 16,888 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | 5,000 | 5,682 | 4,284 | 1,067 | 2,701 |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 681 | 3,599 | 13,768 | 1,635 | 14,187 |  
                    | |  | 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 | 
 |  | 388,968 | 437,967 | 421,025 | 301,631 | 210,036 |      
    There is no report. |  |