ENVALITH
サンコール株式会社 logo

SUNCALL CORPORATION

5985Standard MarketMetal Products

サンコール株式会社 logo
SUNCALL CORPORATION5985

Japan

Core segment of domestic operations. Covers a broad range of automotive and electronics/information/communications fields.

PeriodCurrentPreviousChange
Segment net sales¥29,261 million (FY2026 (ending March 2026))¥40,864 million (FY2025 (ended March 2025))
Segment profit¥2,769 million (FY2026 (ending March 2026))¥1,331 million (FY2025 (ended March 2025))
Segment assets¥37,791 million (FY2026 (ending March 2026))¥44,200 million (FY2025 (ended March 2025))
Depreciation¥1,623 million (FY2026 (ending March 2026))¥1,458 million (FY2025 (ended March 2025))
Net sales to external customers¥27,644 million (FY2026 (ending March 2026))¥39,265 million (FY2025 (ended March 2025))

Business Details

The domestic segment comprising Suncall Corporation itself and two domestic subsidiaries. In the automotive field, it manufactures and sells Materials-related Products (oil tempered wire, hard drawn steel wire, etc.) and Automotive-related Products (valve springs, busbars, LED-related products, etc.). In the electronics/information/communications field, it handles HDD Suspensions (withdrawal from this business completed during FY2026 (ending March 2026)), Printer-related Products, and Communications-related Products (Precision Components for Optical Fiber). It is the largest segment, accounting for approximately 53% of consolidated net sales (FY2026 (ending March 2026)).

Recent Overview

Although net sales declined significantly due to the completed withdrawal from HDD business, profit improved dramatically, up 108% year on year

Net sales for the Japan segment in FY2026 (ending March 2026) were ¥29,261 million (down 28.4% year on year). This was mainly due to the disappearance of sales resulting from the withdrawal from the HDD Suspensions business (shipments ended in July 2025). On the other hand, segment profit improved substantially to ¥2,769 million (up 108.0% year on year), mainly due to the disappearance of the reversal effect from business restructuring expenses recorded in the prior fiscal year. The major customer shifted from WESTERN DIGITAL to Toyota Motor Corporation (¥5,543 million), and the business structure has shifted to be centered on the automotive field.

Key Products

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Automotive-related Products

Due to an increase in busbars and LED-related products, net sales in FY2026 (ending March 2026) rose 2.4% year on year to ¥28,986 million. Demand growth associated with progressing electrification continued.

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Materials-related Products

Due to a decline in orders from major customers, net sales in FY2026 (ending March 2026) fell 13.5% year on year to ¥8,283 million. This includes sales to the North America Mexico subsidiary.

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Communications-related Products (Precision Components for Optical Fiber)

Demand for data centers remained strong, and on a consolidated basis net sales for FY2026 (ending March 2026) increased 40.2% year on year to ¥6,959 million. Growth in sales in North America and Asia was the driving force. The Japan segment serves as the core for design and development.

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Printer-related Products

Orders from customers have been declining, and net sales in FY2026 (ending March 2026) fell 15.0% year on year to ¥3,581 million.

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HDD Suspensions

Production at the outsourced production site ended in June 2025, and shipments to customers ended in July of the same year. Net sales for FY2026 (ending March 2026) were ¥3,865 million (down 76.4% year on year). The completion of the business withdrawal contributed to profit through the reversal of business restructuring expenses recorded in the prior fiscal year.

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Other Products

In FY2026 (ending March 2026), sales rose slightly to ¥547 million (up 5.7% year on year).

Growth Drivers

  • Rapid expansion in demand for data center Connectors and Adapters for Optical Communications, driven by the spread of generative AI and expansion of cloud services (Communications-related net sales up 40.2% year on year)
  • Increased demand for busbars and LED-related products due to progress in electrification such as EVs/HVs (Automotive-related Products up 2.4% year on year)
  • Normalization of the earnings structure following the disappearance of business restructuring expenses and impairment losses due to the completed withdrawal from the HDD Suspensions business
  • Competitive advantage from proprietary design and extensive lineup of precision components for optical communications, along with timely capacity expansion
  • Utilization of a stable order base for automotive manufacturers, led by Toyota Motor Corporation

Risks

  • Significant contraction in sales scale due to withdrawal from the HDD Suspensions business (segment net sales in FY2026 (ending March 2026) down 28.4% year on year)
  • Mid-to-long-term market contraction expected for automotive engine and transmission precision functional components, requiring a shift toward a profitability-focused business model
  • Declining trend in orders for Printer-related Products (down 15.0% year on year in FY2026 (ending March 2026))
  • Risk of declining orders from major customers in Materials-related Products (down 13.5% year on year in FY2026 (ending March 2026))
  • Impact on the automotive supply chain and increased demand uncertainty due to U.S. trade policy and tariff developments
  • Cost increase pressure from unstable exchange rates and rising prices

Last updated: June 26, 2026