Back-end semiconductor materials · ABF film & HBM materials leader

Resonac

A world-class back-end materials maker in upstream advanced-packaging materials (ABF dielectric film, CMP slurry, high-purity gases, HBM NCF and TIM), with ~¥450bn of 2024 semiconductor/electronic-materials revenue. From foundries (TSMC, Samsung) to OSATs (ASE, Amkor) to substrate makers (Shinko, Unimicron, AT&S, Nan Ya PCB), it is a common supplier feeding nearly every step of the back-end chain, so revenue tracks total advanced-packaging volume rather than any one customer. As AI accelerators add stacking layers and HBM adoption grows, NCF/TIM/ABF turnover accelerates — exposing it to the AI packaging cycle through material consumption rather than equipment.

4004.T Updated Jul 12, 2026 5 AI consumers· 4 recurring

Per the valuechain.wiki graph, Resonac is directly linked to 9 companies (0 supply, 9 revenue relationships) and reaches 34 companies within two hops; the links are backed by 16 dated sources, 2 of them primary filings (as of 2026-07-12).

Annual return · 2026-09-04'21-2.6%'22-4%'23+37.5%'24+30.3%'25+137.9%YTD+73.5%
ResonacSemiconductor & Electronic Materials FY2025 core operating income JPY 108.4bn
Money outcomponents, materials & R&D (undisclosed)equipment & infrastructure (undisclosed)

Financials & Segments

  • Total revenue · Semiconductor & Electronic Materials FY2025 core operating income JPY 108.4bn (+47%), 30.2% EBITDA margin (AI back-end materials share 10%→20%)
  • Segments · Semiconductor packaging materials (back-end)

Revenue from

  • TSMC High confidence
    Supplies back-end materials to TSMC, the No.1 foundry, with a TSMC Excellent Performance Award; a materials-side beneficiary of TSMC's advanced-packaging expansion.
    Mentions EN Goldman Sachs, Mizuho et al. Published Feb 15, 2026: Resonac (4004) analysts: Goldman Sachs initiates Buy (target ¥8,050); consensus Buy
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Confirms EN Resonac Published Dec 1, 2025: Resonac wins TSMC Excellent Performance Award
    Confirms EN Resonac Published May 1, 2025: Resonac IR
  • ASE Technology Medium confidence
    Supplies advanced-packaging materials to ASE, the world's top OSAT; a volume-linked relationship where material consumption rises with OSAT utilization.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Resonac Published Dec 1, 2025: Resonac wins TSMC Excellent Performance Award
    Confirms EN Resonac Published May 1, 2025: Resonac IR
  • Samsung Electronics Medium confidence
    Supplies back-end materials to Samsung (foundry/packaging); serving a customer that competes with TSMC gives it supplier neutrality.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Resonac Published Dec 1, 2025: Resonac wins TSMC Excellent Performance Award
    Confirms EN Resonac Published May 1, 2025: Resonac IR
  • AT&S Medium confidence
    Supplies ABF and substrate materials to Austria's AT&S; Resonac also holds top share in HBM NCF/TIM.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms KO Digital Today Published Jun 1, 2025: Deepening reliance on Japanese suppliers in the HBM4 era
    Confirms EN AT&S Published May 1, 2025: AT&S IR
    Confirms JA EDINET / company IR Published Mar 26, 2025: Annual Securities Report (EDINET)
    Confirms EN IMR Published Jan 1, 2025: Package substrate market (AT&S HBM/3D)
  • Nan Ya PCB Medium confidence
    Supplies IC-substrate materials to Taiwan's Nan Ya PCB — one axis of substrate-channel diversification.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Nan Ya PCB Published May 1, 2025: Nan Ya PCB
    Confirms EN MatrixBCG Published Jan 1, 2025: Nan Ya PCB AI/HPC strategy
  • Shinko Electric Industries Medium confidence
    Supplies ABF film and substrate materials to Japan's Shinko Electric — upstream material dependency for FC-BGA substrates.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Shinko Published May 1, 2025: Shinko Electric
    Confirms EN MGR Published Jan 1, 2025: Unimicron leads IC-substrate revenue
  • LG Innotek Medium confidence
    Supplies ABF and substrate materials to LG Innotek's FC-BGA substrate business — a newer Korean substrate customer.
    Confirms KO Financial News Published Jun 17, 2026: LG Innotek targets KRW 1T from substrates
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Confirms KO TechM Published Jan 1, 2025: LG Innotek and Samsung Electro-Mechanics compete in FC-BGA
  • Unimicron Medium confidence
    Supplies ABF and substrate materials to Unimicron, Taiwan's largest IC-substrate maker — material demand tied to substrate capacity expansion.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Unimicron Published May 1, 2025: Unimicron IR
    Confirms EN MGR Published Jan 1, 2025: Unimicron leads IC-substrate revenue
  • Amkor Technology Medium confidence
    Supplies packaging materials to Amkor, a large OSAT with a US footprint — with ASE, one of the two OSAT-channel anchors.
    Confirms EN Resonac Published Feb 13, 2026: Resonac FY2025 Consolidated Financial Results (IFRS)
    Mentions EN Earnings briefing Published Feb 13, 2026: Resonac FY2025: Semiconductor & Electronic Materials record profit, driven by AI back-end materials
    Confirms EN Resonac Published Dec 1, 2025: Resonac wins TSMC Excellent Performance Award
    Confirms EN Resonac Published May 1, 2025: Resonac IR

Pays to

  • components, materials & R&D (undisclosed) Low confidence
    Parts, materials and R&D (undisclosed).
    Confirms EN Resonac Published May 1, 2025: Resonac IR
  • equipment & infrastructure (undisclosed) Low confidence
    Production equipment and infrastructure (undisclosed).
    Confirms EN Resonac Published May 1, 2025: Resonac IR

Value-chain ripple (2 tiers)

Following node-to-node links up to 2 tiers; each firm is shown once, at its nearest tier.

CompanyChain'21'22'23'24'25YTD
Marvelllead2+84.6-57.5+63.7+83.8-22.8+163.4
Intellead2+6.1-46.6+94.6-59.6+84+159.6
MediaTeklead2+27.8-26.6+52.9+58.3+24.9+152.4
AMDlead2+56.9-55+127.6-18.1+77.3+123
Global Unichiplead2+21.4+67.6+99.4-13.7+101.4+122.8
Fortinetlead2+142-32+19.7+61.4-16+96.8
Astera Labslead2····+25.6+86.6
Realteklead2+19.6-33.8+56.2+19.1-6.4+47.5
Ciscolead2+45.8-22.5+9.3+21+33.5+43.8
Alchip Technologieslead2+14.3-8.7+365.1-18.9+0.8+36.1
Analog Deviceslead2+21-4.9+23.4+8.8+29.8+34.8
Renesas Electronicslead2+8.2+2.4+88-13.6+23.8+28.2
NVIDIAlead2+125.5-50.3+239+171.2+38.9+23.7
Credo Technologylead2··+46.3+245.2+114.1+18.5
Microchip Technologylead2+27.5-18+30.9-35+14.6+18.4
Sony Semiconductor Solutionslead2+27.2-8.4+27.8+17.9+1+12.9
NXP Semiconductorslead2+44.8-29.2+48.4-8+6.4+5.9
Broadcomlead2+56.5-13.3+104.2+110.5+50.6+3.8
Montage Technologylead2-18.2-21.8-18+51.4+169+3.4
Qualcommlead2+22.3-38.6+35.1+8.3+13.8+0.2
Ambarellalead2+121-59.5-25.5+18.7-2.6-11.2
Phison Electronicslead2+26.8-10.7+45.1-6.7+418.3-14.7
Mobileyelead2··+23.6-54-47.6-18
Will Semiconductorlead2-12.1-49.7-8.3+22.8+15.5-33.7
AT&Slead1+57.5-22-27.6-41.3+188.9+334.1
Nan Ya PCBlead1+110.6-46.7-0.5-38.3+188.2+172.1
Unimicronlead1+133.5-30.2+35.2-19.7+175.7+138.8
ASE Technologylead1+38.3-12.8+60.9+10.1+65.6+135.3
LG Innoteklead1+78.2-22-28.8-22.1+66.8+130.7
Samsung Electronicslead1-9-14.2+20.9-26.4+212.9+59.7
TSMClead1+12.1-36.7+42.3+92.6+55.9+41.9
Amkor Technologylead1+65.6-2.3+40.3-20.8+55.9+21.6
Resonacnode-2.6-4+37.5+30.3+137.9+73.5

YTD as of 2026-09-04 · source: Yahoo Finance

Resonac operates across TSE, Back-end semiconductor materials, ABF film & HBM materials leader. Momentum stayed firm and it is +73.5% in 2026. The demand side (avg +171.7%) leads the stock (+73.5%), so customer moves come first here. Among connected nodes the furthest ahead is AT&S (+334.1%) and the furthest behind is TSMC (+41.9%). If chain logic explains the gap, the laggard is the next propagation candidate; if not, the link itself deserves a second look. As AI accelerators add stacking layers and HBM adoption grows, NCF/TIM/ABF turnover accelerates — exposing it to the AI packaging cycle through material consumption rather than equipment.

Analysis generated from returns as of 2026-09-04

Analyst ratings

Consensus: Buy 2 · Hold 1 · Sell 0 · Avg. target ¥21,300 · Price ¥15,530 (09-04) · Upside +37%

BrokerRatingTargetPublished
Mizuho Securities中立¥18,500Jun 9, 2026Report
Nomura SecuritiesBuy¥23,000Jun 3, 2026Report
Morgan Stanley MUFG Securitiesオーバーウェイト (Overweight)¥22,400May 29, 2026Report

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