YICHEN IND (01596) experienced a significant surge, rising over 76% after issuing a profit alert. At the time of writing, the stock was up 60.71%, trading at HKD 0.9 with a turnover of HKD 14.94 million. On March 13, YICHEN IND announced that the group expects to achieve a consolidated net profit of approximately RMB 334 million for the fiscal year ending December 31, 2025. This represents a turnaround from the consolidated net loss of approximately RMB 57.7 million reported for the fiscal year ending December 31, 2024. The board attributes the anticipated improvement in financial performance primarily to an increase in shipments of the group's railway fastening system products and a decrease in raw material procurement costs during the 2025 fiscal year. Consequently, the group's revenue increased from approximately RMB 1.091 billion in fiscal 2024 to approximately RMB 1.667 billion in fiscal 2025, a rise of about RMB 576 million or approximately 52.8%. The group's gross profit for fiscal 2025 increased by approximately RMB 331 million, a growth of about 130.8%. This growth is consistent with the continued expansion of railway infrastructure investment in China. According to data released by the China State Railway Administration, national railway fixed asset investment completed in 2025 reached approximately RMB 901.5 billion, a year-on-year increase of about 6.0%, with approximately 3,109 kilometers of new lines, including about 2,862 kilometers of high-speed rail, being put into operation.