Core Viewpoint - The company, JieJie Microelectronics (300623.SZ), has recently confirmed its capability in mass production of power semiconductor chips using its 6-inch production line, which has a minimum line width of 0.35um [1] Production Capacity - The 6-inch production line currently has a capacity of 6 million wafers per month and has maintained a shipment level of over 5 million wafers for three consecutive months, indicating it is operating at full capacity [1]

Investment Rating - The report maintains a "Recommended" rating for the company [2][6]. Core Insights - The company achieved a significant revenue increase of 35.05% year-on-year, reaching 2.845 billion yuan, while the net profit attributable to shareholders surged by 115.87% to 473 million yuan in 2024 [3][4]. - The strong performance is attributed to robust sales in two core product lines, with power semiconductor chip production and sales increasing by 43.93% and 63.10% respectively, leading to a revenue growth of 44.59% and a gross margin of 23.47% [4]. - The company is expanding its product structure with a new 6-inch wafer production line, which has reached a capacity of 50,000 pieces per month, enhancing its offerings in the power semiconductor sector [5]. - A subsidiary focused on high-end isolation chips has been established, aiming to tap into new growth areas in high-end manufacturing and domestic substitution, with expected sales of around 5 million yuan in 2025 [6]. Financial Performance Summary - The company reported a total revenue of 2,845 million yuan for 2024, with a year-on-year growth rate of 35.05% [12]. - The net profit attributable to shareholders for 2024 was 473 million yuan, reflecting a growth rate of 115.87% [12]. - The projected earnings per share (EPS) for 2025, 2026, and 2027 are expected to be 0.78 yuan, 1.02 yuan, and 1.35 yuan respectively [6][12].