According to regulatory filings released Monday, the steelmaker posted an operating profit of 57.7 billion won ($40.3 million) for the three months ended June, down 43.3 percent from a year earlier.
Net profit came in at 12.1 billion won, while revenue edged up 2.7 percent on year to 6.11 trillion won.
The picture brightened against the previous quarter, with operating profit surging more than fourfold from a weak first quarter and sales climbing 6.4 percent.
Yet the first-half tally told a starker story as cumulative operating profit fell 11.2 percent from a year earlier to 73.4 billion won, leaving the company well behind its 2025 pace.
Hyundai Steel struck an upbeat tone, attributing the sequential gains to firmer shipments of bar and shaped-steel products and higher prices.
"Profitability is expected to improve as construction conditions gradually recover in the second half, buoyed by expanding investment in advanced domestic industries," the company said, adding that borrowings had risen temporarily on its new U.S. mill investment.
Looking ahead, the company said it would chase demand tied to data centers, next-generation nuclear plants and semiconductor fabrication facilities, having already won orders to supply steel for seven new data-center projects this year.
Shares of Hyundai Steel traded at 24,500 won per stock at 2:34 p.m., 7.21 percent lower than the previous session.
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