ENVALITH
日本シイエムケイ株式会社 logo

CMK CORPORATION

6958Prime MarketElectric Appliances

日本シイエムケイ株式会社 logo
CMK CORPORATION6958

Japan

The Group's largest core segment, responsible for the manufacture and sale of printed wiring boards for domestic automotive applications

PeriodCurrentPreviousChange
Net sales (external customers)¥61,670 million¥56,821 million
Segment profit¥2,591 million¥2,211 million
Segment assets¥120,654 million¥112,750 million
Depreciation and amortization¥1,631 million¥1,514 million
Capital expenditures (increase in tangible and intangible fixed assets)¥2,118 million¥1,531 million
Net sales to major customer (DENSO)¥35,155 million¥31,185 million

Business Details

CMK Corporation (parent company) and its domestic consolidated subsidiaries manufacture and sell printed wiring boards domestically. Major customers are centered on automotive applications, led by DENSO Corporation (net sales of ¥35,155 million for the current period, approximately 57% of segment sales). The company is focused on expanding sales of high-value-added boards for powertrain and driving safety systems (ADAS-compatible), and this is the largest segment, accounting for approximately 61.5% of the Group's total net sales to external customers.

Recent Overview

Achieved increased sales and profit due to growth in domestic automobile sales and the shift to yen depreciation in the second half

In the Japan segment for FY2026 (ending March 2026), sales for automotive applications increased against a backdrop of rising domestic automobile sales, resulting in net sales of ¥61,670 million (up 8.5% year on year). On the profit side, segment profit was sluggish in the first half due to changes in the product mix and the impact of yen appreciation, but in the second half, the profit environment improved significantly due to an increase in high-value-added products and a shift to yen depreciation against the US dollar, resulting in segment profit of ¥2,591 million (up 17.1% year on year).

Key Products

product
Printed Wiring Boards for Automotive Applications

Printed wiring boards for automotive electronic components, centered on powertrain and driving safety systems (ADAS-compatible). Supplied to major Japanese customers including DENSO, accounting for the majority of Japan segment sales.

product
DPGA Substrate (High Heat Dissipation Substrate)

A high heat dissipation substrate for which patent implementation rights have been acquired, a high-value-added product aimed at expansion into new business areas such as power modules for EVs and HVs.

Growth Drivers

  • Expansion of demand for automotive applications due to increased domestic automobile sales
  • Increase in the production and sales ratio of high-value-added products (such as build-up boards)
  • Expansion of orders for driving safety systems and ADAS-compatible products
  • Continued expansion of net sales to DENSO (¥35,155 million in the current period)
  • Expansion into new business areas through acquisition of patent implementation rights for DPGA Substrate (High Heat Dissipation Substrate)
  • Improved utilization rates and reduced defect rates through the promotion of multi-skilled workers at production sites

Risks

  • Decline in foreign-currency-denominated sales due to yen appreciation against the US dollar
  • Risk of sluggish orders due to stagnation in domestic automobile production volume
  • Deterioration in profit margins due to changes in the product mix (decrease in high-value-added products)
  • Concerns over declining automobile demand due to the impact of US tariff policy
  • Difficulty securing personnel at production sites due to a declining working-age population
  • Risk of sales concentration with DENSO (approximately 57% of segment sales)

Last updated: June 23, 2026