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                    |  |  | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 47,658 | 52,796 | 51,266 | 49,165 | 56,285 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 24,486 | 36,893 | 27,921 | 32,231 | 30,284 |  
                    | |  | 1. Cash | 
 |  | 24,486 | 36,893 | 27,921 | 32,231 | 30,284 |  
                    | |  | 2. Cash equivalents | 
 |  |  |  |  |  |  |  
                    | |  | II. Short-term financial investments | 
 |  |  |  |  |  |  |  
                    | |  | 1. Trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Provision for diminution in value of trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 3. Investments holding until maturity | 
 |  |  |  |  |  |  |  
                    | |  | III. Short-term receivables | 
 |  | 12,534 | 11,891 | 12,444 | 13,694 | 15,418 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 8,232 | 8,353 | 8,375 | 8,341 | 9,513 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 4,341 | 3,660 | 3,992 | 4,894 | 5,380 |  
                    | |  | 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 | 
 |  | 5,764 | 5,855 | 6,089 | 6,424 | 6,557 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -5,803 | -5,977 | -6,012 | -5,965 | -6,033 |  
                    | |  | IV. Inventories | 
 |  | 10,494 | 3,282 | 10,531 | 3,087 | 10,332 |  
                    | |  | 1. Inventories | 
 |  | 12,300 | 3,282 | 12,408 | 3,087 | 12,268 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  | -1,806 |  | -1,877 |  | -1,936 |  
                    | |  | V. Other current assets | 
 |  | 145 | 730 | 370 | 153 | 251 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  | 145 | 730 | 370 | 153 | 251 |  
                    | |  | 2. Deductible VAT | 
 |  |  |  |  |  |  |  
                    | |  | 3. Taxes and the State Receivables | 
 |  |  |  |  |  |  |  
                    | |  | 4. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other current assets | 
 |  |  |  |  |  |  |  
                    | |  | B. FIXED ASSETS AND LONG-TERM INVESTMENTS | 
 |  | 841,619 | 870,312 | 860,248 | 877,366 | 872,451 |  
                    | |  | 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 | 
 |  | 781,953 | 801,666 | 798,958 | 807,281 | 809,289 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 781,893 | 801,624 | 798,935 | 807,276 | 809,289 |  
                    | |  | - Cost | 
 |  | 1,443,098 | 1,492,313 | 1,501,250 | 1,531,394 | 1,547,317 |  
                    | |  | - Accumulated depreciation | 
 |  | -661,204 | -690,690 | -702,315 | -724,118 | -738,029 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  | 60 | 42 | 23 | 6 |  |  
                    | |  | - Cost | 
 |  | 109,894 | 113,540 | 114,210 | 116,503 | 117,834 |  
                    | |  | - Accumulated depreciation | 
 |  | -109,833 | -113,498 | -114,187 | -116,497 | -117,834 |  
                    | |  | III. Real Estate Investments | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term assets in progress | 
 |  | 47,844 | 49,432 | 49,724 | 51,256 | 51,301 |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  | 47,844 | 49,432 | 49,724 | 51,256 | 51,301 |  
                    | |  | IV. Long-term financial investments | 
 |  | 10,250 | 10,591 | 10,653 | 10,867 | 10,991 |  
                    | |  | 1. Investment in subsidiaries | 
 |  |  |  |  |  |  |  
                    | |  | 2. Investments in associated companies, joint ventures | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other investments in equity instruments | 
 |  | 10,250 | 10,591 | 10,653 | 10,867 | 10,991 |  
                    | |  | 4. Provision for diminution in value of financial long-term investments | 
 |  |  |  |  |  |  |  
                    | |  | 5. Investments holding until maturity | 
 |  |  |  |  |  |  |  
                    | |  | V. Total other long-term assets | 
 |  | 1,571 | 8,623 | 914 | 7,962 | 870 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 1,571 | 1,261 | 914 | 668 | 870 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  | 7,363 |  | 7,294 |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 889,277 | 923,108 | 911,514 | 926,531 | 928,736 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 342,320 | 364,816 | 359,291 | 353,103 | 350,108 |  
                    | |  | I. Current liabilities | 
 |  | 230,296 | 237,566 | 231,290 | 225,853 | 222,416 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  | 86,961 | 87,396 | 73,655 | 53,644 | 60,552 |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 2,619 | 3,565 | 3,203 | 4,058 | 2,115 |  
                    | |  | 4. Advances from customers | 
 |  | 927 | 687 | 1,444 | 1,637 | 879 |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 4,763 | 5,749 | 8,103 | 13,450 | 2,617 |  
                    | |  | 6. Payables to employees | 
 |  | 4,696 | 3,538 | 3,982 | 4,308 | 4,474 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 39,528 | 42,029 | 46,509 | 51,671 | 55,882 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  | 897 | 2,239 | 427 | 963 | 470 |  
                    | |  | 11. Other short-term payables | 
 |  | 89,906 | 92,362 | 93,967 | 96,121 | 95,427 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  |  |  |  |  |  |  
                    | |  | 14. Price stabilization fund | 
 |  |  |  |  |  |  |  
                    | |  | 15. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | II. Long-term liabilities | 
 |  | 112,024 | 127,250 | 128,001 | 127,250 | 127,692 |  
                    | |  | 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 | 
 |  | 112,024 | 127,250 | 128,001 | 127,250 | 127,692 |  
                    | |  | 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 | 
 |  | 546,957 | 558,292 | 552,224 | 573,428 | 578,628 |  
                    | |  | I. ShareHolder's equity | 
 |  | 546,957 | 558,292 | 552,224 | 573,428 | 578,628 |  
                    | |  | 1. Owner's investment capital | 
 |  | 703,688 | 703,688 | 703,688 | 703,688 | 703,688 |  
                    | |  | 2. Share capital surplus | 
 |  | 81,363 | 81,363 | 81,363 | 81,363 | 81,363 |  
                    | |  | 3. Bond conversion option | 
 |  |  |  |  |  |  |  
                    | |  | 4. Other owner's capital | 
 |  |  |  |  |  |  |  
                    | |  | 5. Treasury shares | 
 |  |  |  |  |  |  |  
                    | |  | 6. Differences upon asset revaluation | 
 |  |  |  |  |  |  |  
                    | |  | 7. Differences upon foreign exchange rate | 
 |  | 319,872 | 366,173 | 369,457 | 380,750 | 387,274 |  
                    | |  | 8. Investment and development funds | 
 |  | 11,206 | 11,206 | 11,206 | 11,206 | 11,206 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | -569,171 | -604,138 | -613,490 | -603,579 | -604,904 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | -548,698 | -576,939 | -604,138 | -604,138 | -604,138 |  
                    | |  | - Profit after tax undistributed this period | 
 |  | -20,473 | -27,200 | -9,352 | 559 | -765 |  
                    | |  | 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 | 
 |  | 889,277 | 923,108 | 911,514 | 926,531 | 928,736 |      
    There is no report. |  |