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                    |  |  | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 78,405 | 85,737 | 79,033 | 81,483 | 88,957 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 50,392 | 56,680 | 49,614 | 52,027 | 61,546 |  
                    | |  | 1. Cash | 
 |  | 5,084 | 5,076 | 7,579 | 9,698 | 4,670 |  
                    | |  | 2. Cash equivalents | 
 |  | 45,308 | 51,604 | 42,035 | 42,330 | 56,877 |  
                    | |  | 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 | 
 |  | 19,377 | 20,724 | 21,363 | 21,431 | 19,574 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 1,257 | 1,977 | 5,003 | 6,367 | 6,022 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 18,283 | 18,727 | 16,253 | 14,841 | 13,627 |  
                    | |  | 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 | 
 |  | 40 | 222 | 309 | 425 | 126 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -202 | -202 | -202 | -202 | -202 |  
                    | |  | IV. Inventories | 
 |  | 8,511 | 8,333 | 8,057 | 8,025 | 7,837 |  
                    | |  | 1. Inventories | 
 |  | 8,511 | 8,333 | 8,057 | 8,025 | 7,837 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  |  |  |  |  
                    | |  | V. Other current assets | 
 |  | 126 |  |  |  |  |  
                    | |  | 1. Short-term prepaid expenses | 
 |  |  |  |  |  |  |  
                    | |  | 2. Deductible VAT | 
 |  | 126 |  |  |  |  |  
                    | |  | 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 | 
 |  | 144,176 | 144,574 | 143,398 | 143,342 | 145,614 |  
                    | |  | I. Long-term receivables | 
 |  | 390 | 290 |  |  |  |  
                    | |  | 1. Long-term customer's receivables | 
 |  |  |  |  |  |  |  
                    | |  | 2. Business capital in the subsidiary units | 
 |  | 390 | 290 |  |  |  |  
                    | |  | 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 | 
 |  | 74,724 | 103,299 | 100,369 | 97,151 | 94,231 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 74,724 | 103,299 | 100,369 | 97,151 | 94,231 |  
                    | |  | - Cost | 
 |  | 321,155 | 350,448 | 351,108 | 351,411 | 351,977 |  
                    | |  | - Accumulated depreciation | 
 |  | -246,432 | -247,150 | -250,739 | -254,261 | -257,745 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  | 580 | 580 | 580 | 580 | 580 |  
                    | |  | - Accumulated depreciation | 
 |  | -580 | -580 | -580 | -580 | -580 |  
                    | |  | III. Real Estate Investments | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term assets in progress | 
 |  | 66,422 | 38,311 | 40,376 | 43,393 | 48,558 |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  | 66,422 | 38,311 | 40,376 | 43,393 | 48,558 |  
                    | |  | 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 | 
 |  | 2,641 | 2,674 | 2,653 | 2,798 | 2,824 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 2,641 | 2,674 | 2,653 | 2,798 | 2,824 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 222,581 | 230,311 | 222,431 | 224,825 | 234,571 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 31,675 | 37,582 | 27,675 | 35,435 | 40,430 |  
                    | |  | I. Current liabilities | 
 |  | 31,675 | 37,582 | 27,675 | 35,435 | 40,430 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 335 | 634 | 261 | 2,022 | 78 |  
                    | |  | 4. Advances from customers | 
 |  | 189 | 198 | 73 | 50 |  |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 1,864 | 2,191 | 1,603 | 2,706 | 3,255 |  
                    | |  | 6. Payables to employees | 
 |  | 9,449 | 13,374 | 5,366 | 10,046 | 13,863 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 18,797 | 19,415 | 18,831 | 19,309 | 22,585 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  |  |  |  |  |  |  
                    | |  | 11. Other short-term payables | 
 |  | 486 | 303 | 419 | 325 | 367 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 554 | 1,466 | 1,122 | 978 | 281 |  
                    | |  | 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 | 
 |  | 190,906 | 192,729 | 194,755 | 189,390 | 194,140 |  
                    | |  | I. ShareHolder's equity | 
 |  | 190,906 | 192,729 | 194,755 | 189,390 | 194,140 |  
                    | |  | 1. Owner's investment capital | 
 |  | 181,494 | 181,494 | 181,494 | 181,494 | 181,494 |  
                    | |  | 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 | 
 |  | 882 | 882 | 882 | 882 | 882 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | 8,530 | 10,353 | 12,379 | 7,013 | 11,764 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | 14 | 14 | 10,353 | 7 | 7 |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 8,516 | 10,339 | 2,027 | 7,006 | 11,757 |  
                    | |  | 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 | 
 |  | 222,581 | 230,311 | 222,431 | 224,825 | 234,571 |      
    There is no report. |  |