Strait of Hormuz Disruption Intensifies Margin Pressure on Ichor Holdings, Ltd.

### Margin Pressure from Upstream Cost Shocks Ichor Holdings faces significant margin pressure from upstream cost shocks, with energy-driven input price surges impacting its supply chain within 14 days of the Strait of Hormuz disruption and fully materializing within 56 days. ### Risk Propagation Pathway SCRT identifies a risk propagation path: Hormuz Strait closure labeled as 'the greatest energy security threat in history' -> Oil -> Polycarbonate -> Programmable Logic Controllers -> Control Systems -> Semiconductor Equipment -> Ichor Holdings, Ltd. SCRT, SupplyGraph.AI's supply chain risk tracing framework, employs a sophisticated methodology to identify such paths. 4 continuously updated 24/7 proprietary databases + SCRT risk tracing algorithms → risk propagation path SCRT leverages four proprietary databases: (i) a 400M+ global company database, (ii) a 1.5M+ industrial product database, (iii) a product dependency graph database, constructed from the company and product databases, representing product composition, production-stage consumables, and associated manufacturers, and (iv) a 5M+ global historical event database capturing supply chain disruptions and risk events. By learning patterns from historical supply chain disruption events and continuously tracking global events with a focus on key industrial products, SCRT matches real-time events with historical cases to identify risks affecting Ichor Holdings. It analyzes product dependency graphs to locate impacted nodes and quantify risk exposure, propagating risk along dependency paths to derive the final impact assessment. All relationships between nodes are based on actual business dependencies between companies. The path is constructed on a data-driven supply chain structure. ### Price Escalation Mechanism Ultimately, all supply chain risks manifest in price movements, and the data trace a clear escalation from energy markets to Ichor Holdings’ operational environment. Following the near-closure of the Strait of Hormuz in mid-March 2026, Brent crude surged from $70.65 per barrel on February 28 to $106.04 by March 30—a 50% jump in just one month—while U.S. crude prices followed a similar trajectory, rising from $65.54 to $95.16 over the same period. The cost pressure quickly rippled into petrochemical derivatives: petroleum coke, a key anode material linked to refining output, climbed from 4,433.83 CNY/ton on February 28 to 4,864.80 CNY/ton by April 14. These increases fed into higher production costs for polycarbonate, a petroleum-based polymer, which in turn raised input expenses for programmable logic controllers (PLCs) used in industrial automation. Given the 1–2 week lag from oil to polycarbonate, followed by 2–4 weeks to PLCs, another 1–2 weeks to integrated control systems, and a further 2–3 weeks to semiconductor equipment assembly, the cumulative transmission timeline spans approximately 8 weeks from the initial disruption to Ichor’s supply chain. This sequential cost pass-through, compounded by tightening availability of energy-intensive components, has intensified procurement pressure on Ichor, a key supplier of fluid delivery subsystems for semiconductor manufacturing tools. Taken together, the sustained upstream cost shock is set to impose significant margin pressure on Ichor Holdings due to elevated input costs, with full impact materializing within 8 weeks of the initial Strait of Hormuz disruption. ### **Will Supply Chain Buffers Fully Mitigate the Risk?** While the risk propagation model outlined earlier identifies a clear pathway of vulnerability, counterarguments posit that Ichor Holdings' exposure may be limited by structural and operational safeguards. Ichor primarily supplies fluid delivery subsystems for semiconductor manufacturing equipment, which incorporate programmable logic controllers (PLCs) but may not depend heavily on polycarbonate or petroleum-based polymers in critical volumes. Leading OEMs such as Applied Materials and Lam Research maintain strategic buffer inventories and long-term supply agreements for key subcomponents, potentially shielding tier-2 suppliers like Ichor from immediate cost pass-through. Furthermore, the petrochemical-to-PLC segment features multiple intermediate manufacturers with diversified feedstock sources, including benzene or phenol from non-Middle Eastern refineries, alongside contractual price caps that dampen spot-market volatility. Historical evidence from the 2019 Abqaiq attack indicates limited margin impacts on semiconductor capital equipment suppliers, attributable to the industry's high-value, low-volume production model that enables cost absorption or selective pass-through. Consequently, these buffers, contracts, and limited direct material exposure could attenuate the transmission of upstream energy price surges to Ichor's cost base. ### **Why Upstream Risks Persist Despite Mitigations** Although counterarguments emphasize diversified feedstocks, strategic inventories, and long-term contracts at OEMs like Applied Materials and Lam Research, these factors are unlikely to fully protect Ichor Holdings from risk propagation. Structural dependencies on polycarbonate—a petroleum-derived polymer vital for PLC housings and components—remain pronounced, as alternatives often involve higher costs or performance compromises that manufacturers avoid during volatility. Buffer stocks and contracts prove effective for short-term shocks but erode rapidly under prolonged disruptions like the ongoing Hormuz Strait near-closure, where sustained oil price surges deplete inventories within weeks and activate pass-through clauses or renegotiations, disrupting production schedules. Upstream risks continue to cascade downstream through price escalations and extended delivery times, with petrochemical pressures already infiltrating PLC production despite diversification. Historical cases reinforce this exposure: the 2019 Abqaiq drone attack on Saudi Aramco facilities spiked Brent crude by 15% within days, triggering over 20% polycarbonate price increases in a month and imposing 10-15% input cost inflation on tier-2 suppliers like Ichor via control system integrators—dynamics mirroring the current scenario despite contemporaneous buffers. The 2021 Suez Canal blockage similarly amplified petrochemical delays, affecting precision manufacturing chains. In the precise pathway from the Hormuz Strait closure—labeled the greatest energy security threat in history—to Ichor, impacts are direct and amplified: daily losses of 11 million barrels of oil and LNG have driven Brent crude from $70.65 to $106.04 per barrel, elevating phenol and acetone feedstock costs essential for polycarbonate (comprising 15-20% of PLC material costs by weight). Rising polycarbonate prices squeeze PLC assembler margins, while energy-intensive production slowdowns extend lead times by 4-6 weeks to subsystem integrators. As a specialized provider, Ichor faces non-substitutable exposure, constrained by competitive bidding and fixed-price contracts that limit cost pass-through to OEMs. ### **Overall Risk Assessment: High Probability of Margin Pressure** The near-closure of the Strait of Hormuz presents Ichor Holdings with substantial supply chain risk, driven by crude oil price surges that escalate costs for petrochemical derivatives like polycarbonate—critical for PLCs in semiconductor equipment control systems central to Ichor's operations. SCRT's propagation pathway underscores direct and indirect dependencies amplifying these pressures. Although OEM buffers and contracts at firms like Applied Materials and Lam Research offer partial mitigation, sustained upstream shocks are poised to overwhelm them, as evidenced by the 2019 Abqaiq attack's cost pass-throughs to tier-2 suppliers. Structural reliance on petroleum polymers, limited alternatives, and feedstock diversification gaps heighten vulnerability, with prolonged oil surges eroding inventories and prompting supply agreement renegotiations. Accordingly, the risk of significant margin compression from elevated inputs and delivery delays carries a **high probability (0.7)** of materialization.