HKS CO., LTD.
7219・Standard Market・Transportation Equipment
Business
HKS Co., Ltd. (HKS) is an automotive aftermarket parts manufacturer founded in 1973, producing mufflers, turbochargers, suspensions, Electronic Control Products (Utilizing IoT/AI), and other products at its own factory (Fujinomiya City, Shizuoka Prefecture) and selling them both domestically and internationally. The company operates globally through six consolidated subsidiaries (UK, Thailand, China, US, and two domestic companies), with consolidated net sales of ¥8,976 million in FY2025 (ended August 2025). Its main customers are sports- and tuning-oriented automotive users and aftermarket distributors, with Turn14 Distribution, Inc., its largest US distributor, accounting for 10.6% of net sales. The company is listed on the Standard Market of the Tokyo Stock Exchange.
Business Model
Mufflers, turbos, suspensions, and other products are manufactured in-house at the Fujinomiya Plant and the Thai subsidiary's plant, and sold domestically through direct sales and distributors, and overseas through local subsidiaries in the UK, Thailand, China, and the US. The company maintains a gross profit margin of 40.3% (FY2025 (ending August 2025)), with the high in-house production ratio serving as the source of profitability. It invests ¥940 million (same period) in research and development, continuously launching new products to enhance brand value and stimulate customer demand.
Company Strengths
Since its founding in 1973, the company has developed and manufactured turbochargers, mufflers, suspensions, electronic control products, and other products in-house. It has a track record of continuous technological achievements, including attaining a maximum thermal efficiency of 40.6% with its previous-generation engine (RB26) and releasing the next-generation full computer "F-CON VPro Ver5.0." R&D expenses amounted to ¥940 million in FY2025 (ended August 2025), equivalent to approximately 10.5% of net sales.
The equity ratio at the end of FY2025 (ended August 2025) rose to 80.5% (up from 77.3% in the previous fiscal year), continuing a year-on-year upward trend. Against total assets of ¥13,233 million, net assets stood at ¥10,650 million and liabilities at ¥2,582 million, reflecting low leverage. Liquidity is also ample, with a current ratio of 378.5% and a quick ratio of 191.9%. The interest coverage ratio stood at 281.0 times (up from 119.8 times in the previous fiscal year), indicating high financial soundness.
Starting with the establishment of a UK subsidiary in 1996, the company has expanded its presence with operations in Thailand (manufacturing and sales), Shanghai, China (sales and development), and the US (public relations and marketing). In FY2025 (ended August 2025), sales in the Asia region increased 7.4% year on year, while sales in Europe grew 4.3% year on year, reflecting progress toward multipolar diversification. In April 2025, the company established a new development department within HKS USA to strengthen its local responsiveness.
ENVALITH's Perspective
Performance Trend
Revenue over the past five fiscal years peaked at ¥9,241 million in FY2023 (ending August 2023), followed by a slight declining trend in FY2024 and FY2025 (ending August), but FY2026 (ending August 2026) shows a clear recovery trend with cumulative Q3 revenue of ¥7,092 million (up 7.5% year on year). Operating profit reached ¥407 million (up 23.7%), ordinary profit ¥549 million (up 51.5%), and profit attributable to owners of parent ¥413 million (up 44.7%), marking substantial increases at every profit level. External factors included an increase in the yen-converted value of foreign-currency-denominated sales due to the progression of yen depreciation, as well as foreign exchange gains (¥108 million), which contributed to the results. The full-year forecast has already been revised upward to revenue of ¥9,750 million (up 8.6% year on year) and operating profit of ¥500 million (up 26.6%).
Growth Strategy
Aiming for the next stage of growth through three pillars: expanding overseas sales channels, cultivating new products, and responding to carbon neutrality
The company continues to leverage its four-region sales network spanning the UK, Thailand, China, and the US, with a particular focus on expanding inquiries in the US, its primary market. Sales to the US have continued to grow year-on-year on a cumulative basis through the third quarter, indicating steady progress in the overseas sales channel expansion strategy. Increased US tariff costs remain a challenge.
Newly launched products, including suspensions, have been performing well in the market, contributing to improved utilization rates at the head office plant and an improvement in gross profit margin (42.1%, up 1.0 percentage point year-on-year). The continued rollout of new products into the market is key to improving profitability.
Given the business structure centered on Aftermarket Parts (Mufflers, Suspensions, Turbos, etc.) for internal combustion engines, responding to the spread of EVs and tightening carbon neutrality regulations is an issue that will affect the medium- to long-term sustainability of the business. At present, no specific progress has been disclosed in the financial results report, and continued monitoring of the response status is necessary.
Last updated: July 17, 2026