ENVALITH

IBIDEN CO.,LTD. Interview Report

JPY 151B Investment in Kawama Cell6 Creates Upside to FY2030 Plan; Expanded Capacity for High-Performance AI Substrates Sets Up the Next Growth Phase

PublishedNovember 4, 2026 at 18:27 GMT+9

Executive Summary

The key inflection point in these interim results is the company's decision to commit approximately JPY 151B in additional investment ahead of its Cell6/Cell7 decisions. The investment will fill the remaining space (just under half) of Kawama Cell6 with EMIB for CPUs. A new building would take at least four years and miss the timeline customers are demanding. Management therefore chose to secure SAP capacity early by using the remaining space in the existing building. The FY2030 plan (Revenue of JPY 1T, Operating Income of JPY 300B) was left unchanged because management intends to update it in one go once this investment and subsequent large-scale investments are finalized, not because of any concern over the outlook. Demand for EMIB for CPUs is also strong. Against that backdrop, the company is clearly turning its capacity constraints to its advantage, allocating capacity based on both customer demand and profitability.

Message from the Company

We are not debating whether to invest. Investment is a given; all that remains is to finalize which equipment to deploy and on what timeline. We did not leave the FY2030 figures unchanged because of any major risk. Including the investments to follow, we intend to properly disclose our plans for Cell7 and Cell9 within FY2026. Many investors view this positively.

Key Discussion Points

  • Kawama Cell6 Investment Front-Loads Capacity to Close the Supply Gap

    Even if a new-building investment were approved this fiscal year, mass-production lines would not start until around FY2030, with earnings contribution slipping to FY2031–FY2032. Customers said this was too late. The company therefore decided to invest approximately JPY 151B in the remaining ~40% of space at the Kawama Plant to secure SAP capacity first. Lines will ramp up sequentially from FY2029 and are expected to contribute to FY2030 revenue.

  • FY2030 Plan Held Pending a Comprehensive Update That Incorporates New Investments

    The current FY2030 plan excludes both the JPY 151B investment and the investment under consideration to fully utilize building capacity at the Ono Plant. As a rule of thumb for investment efficiency, the company targets incremental revenue roughly equal to the amount invested. Rather than make piecemeal revisions, management plans to update the entire plan alongside decisions on subsequent investments.

  • Product Strategy Prioritizes High-Value-Added Products Under Capacity Constraints

    The SAP process can serve any customer or product. Once line qualification is obtained, capacity can be flexibly reallocated to match customer demand. Customers prefer to entrust the most technically demanding substrates to the company, which supports its strategy of capturing as many high-margin products as possible. Specifically, the new capacity will run GPU substrates for AI servers, EMIB-T for ASICs, and leading-edge EMIB for general-purpose server CPUs.

Envalith's Perspectives

Q&A Highlights

  • Q

    What is the key message you want to convey to investors with these results?

    A

    Leaving the FY2030 plan unchanged is not a defensive decision. The Cell7/Cell9 investments are a given; only the equipment configuration and timeline remain to be finalized. We still intend to make the decision within this fiscal year. To meet customer requests, we first front-loaded approximately JPY 151B of investment at the Kawama Plant. We plan to update the plan for FY2030 and beyond in one go together with subsequent investments. The market environment is by no means negative.

  • Q

    What is the most critical condition for the final Cell7/Cell9 decision?

    A

    It comes down to whether we can meet customer timelines. The biggest bottleneck is engineering resources. Customers are asking us to pull schedules forward even further, and contracts and announcements will follow final adjustments. The next challenge is longer lead times for certain manufacturing equipment. We have made progress securing materials such as glass cloth, and that risk has declined considerably.

  • Q

    What are your selling-price assumptions for FY2027–FY2030?

    A

    The FY2030 plan still reflects price declines and pre-correction pricing, so there is ample potential upside. On the other hand, supply cannot keep pace with demand and a third player is expected to enter the market. We have also factored in the risk of new entrants disrupting the market. It is fair to view FY2027 as a conservative plan with a sizable buffer.

  • Q

    Given capacity constraints, which products and applications will you prioritize?

    A

    Production fundamentally follows customer demand, so we cannot pick only the most profitable products. That said, customers prefer to entrust us with the most difficult substrates, and we are discussing with them how to capture as many high-margin products as possible. New capacity will be allocated to GPU substrates for AI servers, EMIB-T for ASICs, and leading-edge EMIB for general-purpose server CPUs.

  • Q

    What is the outlook for cash generation amid continued heavy capex, and for the Ceramics business?

    A

    We expect significantly positive free cash flow this fiscal year. Capex payments will increase from next fiscal year, but we do not expect free cash flow to turn negative. Our minimum cash-on-hand benchmark is three months of revenue, and we expect to remain well above that level. The Ceramics business is in its toughest phase this fiscal year; we see this year as the bottom, with recovery from next fiscal year onward.

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