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                    |  |  | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 101,581 | 74,904 | 47,995 | 99,423 | 104,214 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 15,765 | 7,958 | 11,615 | 21,589 | 29,648 |  
                    | |  | 1. Cash | 
 |  | 15,765 | 7,958 | 11,615 | 21,589 | 29,648 |  
                    | |  | 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 | 
 |  | 59,926 | 47,124 | 13,942 | 55,452 | 56,063 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 54,356 | 38,646 | 9,494 | 48,369 | 49,559 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 725 | 2,494 | 911 | 417 | 930 |  
                    | |  | 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 | 
 |  | 5,824 | 6,254 | 3,803 | 6,921 | 5,828 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -978 | -271 | -266 | -255 | -255 |  
                    | |  | IV. Inventories | 
 |  | 21,838 | 16,444 | 17,199 | 18,954 | 15,236 |  
                    | |  | 1. Inventories | 
 |  | 21,838 | 16,444 | 17,199 | 18,954 | 15,236 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  |  |  |  |  
                    | |  | V. Other current assets | 
 |  | 4,052 | 3,378 | 5,238 | 3,429 | 3,267 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  | 4,052 | 3,378 | 4,939 | 3,429 | 3,267 |  
                    | |  | 2. Deductible VAT | 
 |  |  |  | 299 |  |  |  
                    | |  | 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 | 
 |  | 141,639 | 136,967 | 146,207 | 141,975 | 136,383 |  
                    | |  | 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 | 
 |  | 133,296 | 128,115 | 135,887 | 131,821 | 126,543 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 131,593 | 126,484 | 134,328 | 130,325 | 125,109 |  
                    | |  | - Cost | 
 |  | 370,598 | 370,271 | 379,260 | 381,272 | 381,272 |  
                    | |  | - Accumulated depreciation | 
 |  | -239,005 | -243,787 | -244,932 | -250,947 | -256,163 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  | 1,702 | 1,631 | 1,559 | 1,496 | 1,434 |  
                    | |  | - Cost | 
 |  | 4,530 | 4,530 | 4,530 | 4,530 | 4,530 |  
                    | |  | - Accumulated depreciation | 
 |  | -2,828 | -2,899 | -2,971 | -3,035 | -3,096 |  
                    | |  | III. Real Estate Investments | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | IV. Long-term assets in progress | 
 |  | 426 | 819 | 952 | 952 | 1,553 |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  |  |  |  |  |  |  
                    | |  | 2. Costs of construction in progress | 
 |  | 426 | 819 | 952 | 952 | 1,553 |  
                    | |  | 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 | 
 |  | 7,918 | 8,033 | 9,369 | 9,202 | 8,288 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 7,918 | 8,033 | 9,369 | 9,202 | 8,288 |  
                    | |  | 2. Deferred income tax assets | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 243,220 | 211,871 | 194,203 | 241,398 | 240,598 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 152,884 | 117,122 | 91,873 | 152,950 | 148,086 |  
                    | |  | I. Current liabilities | 
 |  | 150,319 | 114,564 | 89,318 | 150,441 | 145,635 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  | 40,000 |  | 40,000 |  | 50,000 |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 62,493 | 63,498 | 7,416 | 104,582 | 57,557 |  
                    | |  | 4. Advances from customers | 
 |  | 6,097 | 4,940 | 5,339 | 3,546 | 4,769 |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 3,189 | 6,027 | 2,376 | 4,378 | 8,067 |  
                    | |  | 6. Payables to employees | 
 |  | 17,757 | 27,018 | 28,116 | 8,773 | 13,725 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 6,475 | 5,003 |  | 1,666 | 1,475 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  |  |  |  |  |  |  
                    | |  | 11. Other short-term payables | 
 |  | 11,405 | 5,223 | 3,403 | 22,463 | 7,677 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 2,903 | 2,856 | 2,667 | 5,034 | 2,365 |  
                    | |  | 14. Price stabilization fund | 
 |  |  |  |  |  |  |  
                    | |  | 15. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | II. Long-term liabilities | 
 |  | 2,565 | 2,558 | 2,555 | 2,509 | 2,451 |  
                    | |  | 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 | 
 |  |  |  | 2,555 |  |  |  
                    | |  | 6. Borrowings and long-term financial leased liabilities | 
 |  | 2,565 | 2,558 |  | 2,509 | 2,451 |  
                    | |  | 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 | 
 |  | 90,336 | 94,750 | 102,330 | 88,447 | 92,512 |  
                    | |  | I. ShareHolder's equity | 
 |  | 90,336 | 94,750 | 102,330 | 88,447 | 92,512 |  
                    | |  | 1. Owner's investment capital | 
 |  | 64,325 | 64,325 | 64,325 | 64,325 | 64,325 |  
                    | |  | 2. Share capital surplus | 
 |  | 326 | 326 | 326 | 326 | 326 |  
                    | |  | 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 | 
 |  | 18,117 | 18,117 | 18,117 | 19,686 | 19,686 |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | 7,569 | 11,982 | 19,563 | 4,111 | 8,176 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  |  |  |  |  |  |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 7,569 | 11,982 | 19,563 | 4,111 | 8,176 |  
                    | |  | 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 | 
 |  | 243,220 | 211,871 | 194,203 | 241,398 | 240,598 |      
    There is no report. |  |