Japanese Firms Plan Joint Restart of LNG Carrier Construction, Annual Output of 3-5 Ships Could Generate Hundreds of Billions in Yen in Demand

Overview

Based on a Nikkei News report, this research paper analyzes the potential impact of a plan by three major Japanese shipbuilding-related enterprises (Imabari Shipbuilding, Kawasaki Heavy Industries, and Namura Shipbuilding) to jointly restart liquefied natural gas (LNG) carrier construction. The report argues that if implemented, this plan would fill the gap in Japanese LNG carrier construction since 2019 and bring stable replacement demand of approximately JPY 120-200 billion per year to the Japanese shipbuilding industry. This constitutes a positive catalyst for shipbuilding companies within coverage and upstream engine suppliers.

Core views

According to reporting details, Imabari Shipbuilding (unlisted), Kawasaki Heavy Industries, and Namura Shipbuilding plan to jointly restart LNG carrier construction around 2035. The three parties will share LNG carrier design technology and welding resources involved in construction, primarily proposing to use Kawasaki Heavy Industries' Sakai plant as the production base, aiming to build 3 to 5 ships annually. From the demand side, there are currently about 100 LNG carriers supplying LNG to Japan. Assuming these vessels are replaced every 20 years, building 5 ships per year can meet the capacity renewal required for LNG imports under equal conditions. Based on the current unit price of a 170,000 cubic meter class LNG carrier at approximately $250 million (approximately JPY 40 billion based on an exchange rate of 160 JPY/USD), if an annual output of 3-5 ships is achieved, it will bring stable replacement demand of JPY 120-200 billion per year to the Japanese shipbuilding industry (limited to the commercial vessel market, estimated FY2025 market size of JPY 1.3-1.5 trillion). On the policy front, Nikkei indicates that the Japanese government is considering supporting the plan by introducing subsidies to shipowners who plan to adopt these vessels, with relevant details planned to be included in the 'Public-Private Investment Roadmap' to be formulated in June 2026. For companies covered by Goldman Sachs: 1. **Namura Shipbuilding**: Rating 'Buy', target price JPY 5,600. This development is viewed as a positive factor, providing the company with scope to capture stable mid-to-long-term demand. 2. **Kawasaki Heavy Industries**: Rating 'Neutral', target price JPY 3,900. While also able to capture demand, the report advises careful review of the potential impact of changes in its product mix on profit margins. 3. **Mitsui E&S**: Rating 'Buy', target price JPY 4,157. As a supplier of marine engines to domestic shipbuilders, this development is also positive for them.

Analysis framework

The institution first cites public media reports to confirm the authenticity and core elements of the event (partners, timeline, capacity planning). Subsequently, it quantifies the potential market increment space through a simple supply-demand calculation model (existing fleet size / replacement cycle × single ship price), assessing its significance against the backdrop of the overall Japanese shipbuilding industry market size. Finally, combining the business structures of each company (pure shipbuilding vs. comprehensive heavy industry vs. engine supplier), it analyzes the specific impact path of these orders on financial indicators (revenue stability, profit margins, product mix) for each company, thereby providing differentiated investment recommendations.

Methodology notes

• Industry/Industrial Analysis FrameworkSupply-demand framework

  Stock Replacement Demand Calculation

  Estimates the rigid annual replacement demand of the industry by dividing the 'number of existing operating equipment' by the 'average service life'. In this case, the institution uses this method to judge whether the natural replacement of the LNG fleet can support new shipbuilding order volumes.

• Valuation MethodPB valuation

  Price-to-Book (PB) Valuation Method

  The target price setting for Namura Shipbuilding in the report used PB valuation (Target PB of 2.6x multiplied by ending period net asset value per share), discounted back to the current fiscal year. This is typically applicable to asset-heavy, highly cyclical manufacturing companies.

• Valuation MethodEV/EBITDA valuation

  Enterprise Value Multiple (EV/EBITDA) Valuation Method

  The report uses EV/EBITDA valuation for Kawasaki Heavy Industries, referencing the average multiple of the Aerospace & Defense sub-sector and applying a certain discount. This method is often used to compare the core value of enterprises with different leverage levels by excluding the effects of capital structure and taxes.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Namura Shipbuilding (7014.T)

  Direct beneficiary, as one of the joint builders, will receive stable LNG carrier orders.

  Strengths

  Rated Buy, directly benefiting from new capacity release and mid-to-long-term demand locking.

  Comparison

  Compared to Kawasaki Heavy Industries, Namura Shipbuilding's business is more focused and less dragged down by other low-margin segments.

  Risks

  Sudden increase in shipbuilding capacity, rising steel prices, production issues, decline in ship prices.

• Kawasaki Heavy Industries (7012.T)

  Provider of main production base (Sakai plant) and joint builder.

  Strengths

  Possesses mature production base and technical reserves, able to capture part of the stable demand.

  Weaknesses

  Rated Neutral, needs close scrutiny of the potential negative impact of product mix changes on overall profit margins.

  Comparison

  As a comprehensive heavy industry enterprise, its performance is affected by multiple sectors including aerospace and motorcycles, with shipbuilding accounting for a relatively small proportion.

  Risks

  Fluctuations in the yen exchange rate, defense order growth slower or faster than expected, unexpected exceedance of North American four-wheeler promotional expenses, slow progress in restructuring.

• Mitsui E&S

  Indirect beneficiary, as a supplier of marine engines to domestic shipbuilders.

  Strengths

  Rated Buy, increased downstream shipbuilding activity will drive its engine sales.

Key data

• Planned Annual LNG Carrier Production3-5 shipsTarget capacity for joint construction by the three enterprises
• Unit Price of LNG CarrierApprox. $250 million (approx. JPY 40 billion)Current market price for 170,000 cubic meter class vessels, based on exchange rate of 160 JPY/USD
• Estimated Annual New Market DemandJPY 120 - 200 billionScale of stable replacement demand calculated based on annual production of 3-5 ships
• Japanese Commercial Vessel Market Size (FY2025)JPY 1.3 - 1.5 trillionBenchmark for total industry scale estimated in the report
• Namura Shipbuilding Target PriceJPY 5,600Based on 2.6x P/B valuation
• Kawasaki Heavy Industries Target PriceJPY 3,900Based on FY3/28E EV/EBITDA 14x (including 20% discount)

Impact & implications

If this joint shipbuilding plan is confirmed and implemented, it will mark the restart of LNG carrier construction in Japan after nearly six years of interruption (since the last delivery in 2019). Previously, due to low-price offensives from Chinese and South Korean competitors, Japanese firms exited this field. This move not only helps ensure the security of Japan's LNG import transportation but also injects a certain flow of mid-to-long-term orders into the local Japanese shipbuilding industry chain. For investors, this means increased revenue visibility for relevant companies, but also requires attention to the risk of profit margin fluctuations caused by structural changes in comprehensive enterprises (such as Kawasaki).

Risks

• Intensified competition due to sudden increase in shipbuilding industry production capacity
• Significant rise in raw material prices such as steel
• Technical problems or delays during production
• Unexpected decline in ship market prices
• Significant fluctuation of the yen exchange rate relative to assumed rates (for Kawasaki Heavy Industries)
• Defense orders and revenue growth faster or slower than expected (for Kawasaki Heavy Industries)

What to watch

• Specific details regarding government subsidies in the 'Public-Private Investment Roadmap' to be formulated in June 2026
• Final confirmation of the joint construction agreement and specific execution timeline
• Product mix adjustments by Kawasaki Heavy Industries and their impact on profit margins