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                    |  |  | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 |  
                    | |  | ASSETS | 
 |  |  |  |  |  |  |  
                    | |  | A. CURRENT ASSETS AND SHORT-TERM INVESTMENTS | 
 |  | 585,959 | 624,661 | 548,350 | 502,667 | 502,941 |  
                    | |  | I. Cash and cash equivalents | 
 |  | 1,972 | 13,749 | 4,933 | 643 | 5,761 |  
                    | |  | 1. Cash | 
 |  | 1,972 | 13,749 | 4,933 | 643 | 5,761 |  
                    | |  | 2. Cash equivalents | 
 |  |  |  |  |  |  |  
                    | |  | II. Short-term financial investments | 
 |  | 13,300 | 13,300 | 6,300 | 400 | 400 |  
                    | |  | 1. Trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 2. Provision for diminution in value of trading securities | 
 |  |  |  |  |  |  |  
                    | |  | 3. Investments holding until maturity | 
 |  | 13,300 | 13,300 | 6,300 | 400 | 400 |  
                    | |  | III. Short-term receivables | 
 |  | 347,862 | 380,884 | 340,392 | 302,325 | 312,129 |  
                    | |  | 1.  Short-term receivables of customers | 
 |  | 257,951 | 256,021 | 247,909 | 241,348 | 233,719 |  
                    | |  | 2. Prepayments to suppliers | 
 |  | 34,388 | 63,712 | 65,162 | 35,566 | 53,104 |  
                    | |  | 3. Short-term intercompany receivables | 
 |  |  |  |  |  |  |  
                    | |  | 4. Receivables according to the progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 5. Receivables on short-term loans | 
 |  | 1,570 | 1,570 | 1,570 | 1,570 | 1,570 |  
                    | |  | 6. Other short-term receivables | 
 |  | 82,782 | 88,411 | 54,580 | 52,670 | 52,566 |  
                    | |  | 7. Provision for doubtful short-term receivables | 
 |  | -28,829 | -28,829 | -28,829 | -28,829 | -28,829 |  
                    | |  | IV. Inventories | 
 |  | 211,612 | 206,946 | 189,391 | 191,789 | 178,796 |  
                    | |  | 1. Inventories | 
 |  | 211,612 | 206,946 | 189,391 | 191,789 | 178,796 |  
                    | |  | 2. Provision for decline in value of inventories | 
 |  |  |  |  |  |  |  
                    | |  | V. Other current assets | 
 |  | 11,214 | 9,781 | 7,334 | 7,512 | 5,855 |  
                    | |  | 1. Short-term prepaid expenses | 
 |  | 127 | 67 | 53 | 106 | 120 |  
                    | |  | 2. Deductible VAT | 
 |  | 8,384 | 7,011 | 4,578 | 4,702 | 3,033 |  
                    | |  | 3. Taxes and the State Receivables | 
 |  | 2,703 | 2,703 | 2,703 | 2,703 | 2,703 |  
                    | |  | 4. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other current assets | 
 |  |  |  |  |  |  |  
                    | |  | B. FIXED ASSETS AND LONG-TERM INVESTMENTS | 
 |  | 209,158 | 210,848 | 210,234 | 209,438 | 208,824 |  
                    | |  | 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 | 
 |  | 3,135 | 3,035 | 2,935 | 2,835 | 2,805 |  
                    | |  | 1. Tangible fixed assets | 
 |  | 2,678 | 2,581 | 2,486 | 2,389 | 2,362 |  
                    | |  | - Cost | 
 |  | 75,376 | 75,376 | 75,376 | 75,376 | 75,444 |  
                    | |  | - Accumulated depreciation | 
 |  | -72,698 | -72,795 | -72,891 | -72,988 | -73,082 |  
                    | |  | 2. Fixed assets of financial leasing | 
 |  |  |  |  |  |  |  
                    | |  | - Cost | 
 |  |  |  |  |  |  |  
                    | |  | - Accumulated depreciation | 
 |  |  |  |  |  |  |  
                    | |  | 3. Intangible fixed assets | 
 |  | 457 | 453 | 450 | 447 | 443 |  
                    | |  | - Cost | 
 |  | 662 | 662 | 662 | 662 | 662 |  
                    | |  | - Accumulated depreciation | 
 |  | -206 | -209 | -212 | -216 | -219 |  
                    | |  | III. Real Estate Investments | 
 |  | 6,434 | 6,386 | 6,337 | 6,289 | 6,245 |  
                    | |  | - Cost | 
 |  | 204,627 | 204,627 | 204,627 | 204,627 | 204,627 |  
                    | |  | - Accumulated depreciation | 
 |  | -198,193 | -198,241 | -198,290 | -198,338 | -198,382 |  
                    | |  | IV. Long-term assets in progress | 
 |  | 144,171 | 146,561 | 146,631 | 146,520 | 146,520 |  
                    | |  | 1. Costs of  long-term production, business in progress | 
 |  | 79,266 | 81,655 | 81,725 | 81,747 | 81,747 |  
                    | |  | 2. Costs of construction in progress | 
 |  | 64,905 | 64,905 | 64,905 | 64,773 | 64,773 |  
                    | |  | IV. Long-term financial investments | 
 |  |  |  |  |  |  |  
                    | |  | 1. Investment in subsidiaries | 
 |  |  |  |  |  |  |  
                    | |  | 2. Investments in associated companies, joint ventures | 
 |  |  |  |  |  |  |  
                    | |  | 3. Other investments in equity instruments | 
 |  | 1,800 | 1,800 | 1,800 | 1,800 | 1,800 |  
                    | |  | 4. Provision for diminution in value of financial long-term investments | 
 |  | -1,800 | -1,800 | -1,800 | -1,800 | -1,800 |  
                    | |  | 5. Investments holding until maturity | 
 |  |  |  |  |  |  |  
                    | |  | V. Total other long-term assets | 
 |  | 55,418 | 54,868 | 54,330 | 53,794 | 53,254 |  
                    | |  | 1. Long-term prepaid expenses | 
 |  | 54,521 | 53,971 | 53,434 | 52,898 | 52,358 |  
                    | |  | 2. Deferred income tax assets | 
 |  | 896 | 896 | 896 | 896 | 896 |  
                    | |  | 3. Other long-term assets | 
 |  |  |  |  |  |  |  
                    | |  | VI. Goodwills | 
 |  |  |  |  |  |  |  
                    | |  | TOTAL ASSETS | 
 |  | 795,117 | 835,509 | 758,583 | 712,105 | 711,765 |  
                    | |  | CAPITAL RESOURCES | 
 |  |  |  |  |  |  |  
                    | |  | A. LIABILITIES | 
 |  | 731,905 | 772,080 | 695,010 | 648,312 | 647,765 |  
                    | |  | I. Current liabilities | 
 |  | 582,576 | 568,950 | 523,080 | 493,087 | 488,941 |  
                    | |  | 1. Borrowings and short-term financial leased liabilities | 
 |  | 82,206 | 74,638 | 62,249 | 58,835 | 42,672 |  
                    | |  | 2. Long-term borrowings are due to pay | 
 |  |  |  |  |  |  |  
                    | |  | 3. Short-term payables to sellers | 
 |  | 217,022 | 214,122 | 195,118 | 196,852 | 205,149 |  
                    | |  | 4. Advances from customers | 
 |  | 223,990 | 226,321 | 210,503 | 196,308 | 199,501 |  
                    | |  | 5. Taxes and other payables to the State Budget | 
 |  | 157 | 166 | 235 | 95 | 116 |  
                    | |  | 6. Payables to employees | 
 |  | 7,368 | 7,315 | 7,263 | 7,989 | 7,853 |  
                    | |  | 7. Short-term accrued expenses | 
 |  | 11,516 | 9,955 | 10,998 | 10,985 | 10,594 |  
                    | |  | 8. Short-term intercompany payables | 
 |  |  |  |  |  |  |  
                    | |  | 9. Payables to the scheduled progress of construction contracts | 
 |  |  |  |  |  |  |  
                    | |  | 10. Short-term unrealized Revenue | 
 |  | 1,848 | 459 | 1,776 | 522 | 1,616 |  
                    | |  | 11. Other short-term payables | 
 |  | 38,057 | 35,564 | 34,530 | 21,127 | 21,073 |  
                    | |  | 12. Provision for short term payables | 
 |  |  |  |  |  |  |  
                    | |  | 13. Bonus and welfare fund | 
 |  | 411 | 409 | 409 | 375 | 368 |  
                    | |  | 14. Price stabilization fund | 
 |  |  |  |  |  |  |  
                    | |  | 15. Repurchasing and reselling transactions in government bonds | 
 |  |  |  |  |  |  |  
                    | |  | II. Long-term liabilities | 
 |  | 149,329 | 203,130 | 171,930 | 155,225 | 158,824 |  
                    | |  | 1. Long-term payables to sellers | 
 |  |  |  |  |  |  |  
                    | |  | 2. Long-term accrued expenses | 
 |  | 127,737 | 127,737 | 127,737 | 127,737 | 127,737 |  
                    | |  | 3. Intercompany payables on business capital | 
 |  |  |  |  |  |  |  
                    | |  | 4. Long-term intra-company payables | 
 |  |  |  |  |  |  |  
                    | |  | 5. Other long-term payables | 
 |  |  | 55,000 | 25,000 | 14,293 | 14,293 |  
                    | |  | 6. Borrowings and long-term financial leased liabilities | 
 |  | 21,593 | 20,393 | 19,193 | 13,195 | 16,794 |  
                    | |  | 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 | 
 |  | 63,212 | 63,430 | 63,573 | 63,793 | 64,000 |  
                    | |  | I. ShareHolder's equity | 
 |  | 63,212 | 63,430 | 63,573 | 63,793 | 64,000 |  
                    | |  | 1. Owner's investment capital | 
 |  | 170,000 | 170,000 | 170,000 | 170,000 | 170,000 |  
                    | |  | 2. Share capital surplus | 
 |  | -175 | -175 | -175 | -175 | -175 |  
                    | |  | 3. Bond conversion option | 
 |  |  |  |  |  |  |  
                    | |  | 4. Other owner's capital | 
 |  |  |  |  |  |  |  
                    | |  | 5. Treasury shares | 
 |  | -3,186 | -3,186 | -3,186 | -3,186 | -3,186 |  
                    | |  | 6. Differences upon asset revaluation | 
 |  |  |  |  |  |  |  
                    | |  | 7. Differences upon foreign exchange rate | 
 |  |  |  |  |  |  |  
                    | |  | 8. Investment and development funds | 
 |  |  |  |  |  |  |  
                    | |  | 9. Financial reserve funds | 
 |  |  |  |  |  |  |  
                    | |  | 10. Other funds belonging to owner's equity | 
 |  |  |  |  |  |  |  
                    | |  | 11. After tax undistributed profit | 
 |  | -103,427 | -103,209 | -103,065 | -102,846 | -102,639 |  
                    | |  | - After tax undistributed profit accumulated to the end of prior period | 
 |  | -103,998 | -103,998 | -103,209 | -103,209 | -103,209 |  
                    | |  | - Profit after tax undistributed this period | 
 |  | 571 | 789 | 144 | 363 | 570 |  
                    | |  | 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 | 
 |  | 795,117 | 835,509 | 758,583 | 712,105 | 711,765 |      
    There is no report. |  |