ENVALITH
内海造船株式会社 logo

Naikai Zosen Corporation

7018Standard MarketTransportation Equipment

内海造船株式会社 logo
Naikai Zosen Corporation7018

Business

Naikai Zosen, founded in 1944, is a mid-tier shipbuilding manufacturer operating a two-site structure consisting of the Setoda Plant and Innoshima Plant in Hiroshima Prefecture. In its new shipbuilding business, the company handles a diverse range of vessel types, including ocean-going vessels such as general cargo ships and car carriers, as well as coastal and government vessels such as ferries, RORO ships, and transport vessels. It also operates the ship repair business in an integrated manner, with the Shipbuilding Business accounting for approximately 99% of total revenue. Its consolidated subsidiary, Naikai Engineering, handles non-shipbuilding businesses such as civil engineering & construction, hotels, and facility management. Major customers include the Acquisition, Technology & Logistics Agency (ATLA), Mitsui O.S.K. Lines, Fuji Trans Corporation, and other major domestic shipowners and government agencies, and the company also has a track record of sales to ocean-going shipowners.

Business Model

In line with shipbuilding industry business practices, the company adopts the percentage-of-completion method, receiving payments in installments according to construction progress. By managing the entire process from sales through design, procurement, and operations in an integrated manner, it enhances cost competitiveness, and maximizes production efficiency through continuous construction of same-type vessels at its two plants. By combining this with the Ship Repair & Conversion business, the company levels out plant utilization, and builds up its order backlog to secure a medium-term revenue base.

Company Strengths

At the end of FY2026 (ending March 2026), the order backlog for the Shipbuilding Business stood at ¥134,345 million (up 33.7% year on year), equivalent to 25 newly built vessels. Orders received during the fiscal year also increased sharply to ¥80,345 million (up 67.4% year on year), securing a multi-year revenue base. Given the shipbuilding industry's business practice of delivery lead times exceeding three years, revenue visibility is relatively high.

Utilizing the two plants at Setoda and Innoshima, the company achieves learning-curve effects and reduced setup time through continuous construction of same-type vessels. In FY2026 (ending March 2026), 17 newly built vessels were delivered (up 4 vessels year on year), including 9 vessels completed in new fields such as LNG-fueled ferries and transport vessels. Capital expenditure of ¥1,151 million was allocated to productivity-enhancing equipment at both plants, aiming for continuous expansion of construction capacity.

The company has a track record of constructing a wide range of vessel types, including small and medium-sized ferries, RORO vessels, ocean-going cargo vessels, car carriers, and transport vessels, with a diversified customer base spanning the Acquisition, Technology & Logistics Agency (ATLA), major coastal shipowners, and ocean-going shipowners. In FY2026 (ending March 2026), the top customers together accounted for 60-70% of total sales, confirming ongoing transactional relationships with major customers.

ENVALITH's Perspective

Operating income for FY2026 (ending March 2026) reached ¥3,075 million (prior period: ¥1,415 million), an increase of 117.3% YoY, recovering to a level approaching the ¥3,183 million recorded in FY2024 (ended March 2024). This was driven by a combination of factors: an increase in the number of vessels covered by sales (13 vessels → 17 vessels), completion of ship conversion projects, a weaker yen trend, and improved productivity and cost reductions. Operating cash flow also improved significantly to ¥12,455 million from △¥5,375 million in the prior period, and cash and cash equivalents accumulated to ¥10,590 million. Improvement in the financial structure (equity ratio of 28.7%, versus 25.6% in the prior period) was also confirmed.

The company's forecast for FY2027 (ending March 2027) calls for net sales of ¥46,000 million (△2.2% YoY) and operating income of ¥1,600 million (△48.0% YoY), anticipating a significant decline in earnings. This is presumed to be mainly due to the drop-off of high-margin projects from the current period (completion of ship conversions and yen depreciation effects), combined with continued increases in materials/equipment prices and labor costs. While the order backlog remains substantial, and ship prices continue to rise, there is a need to verify the level of profitability. The provision for construction losses decreased significantly to ¥143 million in the current period (from ¥1,237 million in the prior period), which is an improvement, but the key to next period's performance will be the extent to which shipways are filled and the progress of each vessel.

The customer concentration structure continues, with major customers in the current period (Acquisition, Technology & Logistics Agency, CENTENNIAL SHIPPING, and two other companies) accounting for 60-70% of net sales, meaning the risk that order trends from specific customers directly impact business performance remains unchanged. In addition, in the new shipbuilding market, procurement policies for alternative fuels to replace heavy oil remain undetermined, and small and mid-sized shipowners continue to take a wait-and-see stance, leaving uncertainty regarding future order intake as an external environmental factor. Efforts to utilize government subsidies for capital investment and the construction of high-value-added vessels are essential to maintaining medium- to long-term competitiveness, and progress in this area warrants close monitoring.

Growth Strategy

Aiming for sustainable growth and sustained order competitiveness through construction of high value-added vessels, capital expenditure, and strengthening of the two-plant system

The company has clearly stated its policy of implementing capital investment utilizing government subsidies over the medium to long term, aiming to expand construction capacity. Capital expenditure for the acquisition of fixed assets in the current fiscal year continued at ¥1,235 million (¥1,210 million in the previous fiscal year), and construction in progress also increased from ¥83 million to ¥248 million.

Against the backdrop of tightening environmental regulations, the company's strategy is to build a track record in new vessel categories such as LNG-fueled ferries and transport vessels. In the current fiscal year, the company delivered 9 vessels including LNG-fueled vessels, establishing a track record in new fields. In terms of orders received, the company received orders totaling ¥80,345 million (up 67.4% year on year), centered on RORO vessels and transport vessels.

The company continues to promote efficient production through continuous construction of sister vessels at its two plants in Setoda and Innoshima, along with company-wide reductions in materials and equipment costs and general expenses. In the current fiscal year, productivity improvements and reductions in general expenses directly contributed to increased profit, improving the operating margin from 3.2% to 6.5%. This functions as the core measure for securing short-term profitability.

Last updated: July 19, 2026