The US-China trade war is fundamentally reshaping the optical fibre market, creating a structural opportunity for Indian manufacturers Sterlite Technologies and HFCL to capture demand vacated by Chinese suppliers. The Trump administration is drafting a ban on new Chinese data centre components, specifically targeting optical transceivers, while a 35% anti-dumping duty on Chinese optical-fibre cables remains in place. These measures directly benefit Indian manufacturers by reducing Chinese competitive advantages and creating supply chain security concerns among US hyperscalers.
The trade restrictions create immediate competitive advantages for both companies. Sterlite Technologies' localized US manufacturing capability—$100 million invested over five years—allows it to bypass US tariffs naturally and meet "Made in America" procurement mandates. The company has seen North America revenue expand to 54% in Q1 FY27, up from 39% in FY26. HFCL, while lacking US manufacturing facilities, has leveraged its export-led model to grow export revenues from 4.54% in FY21 to 56% in Q1 FY27, targeting 60%+ going forward. Transcripts +1
US customer avoidance behaviors toward Chinese manufacturers are creating a structural demand shift. Management commentary indicates that many hyperscalers are "not even considering Chinese suppliers anymore," driven by both regulatory pressure and national security concerns. This shift is particularly pronounced in the data centre segment, where Sterlite Technologies has dramatically increased its revenue contribution from 1% in FY26 to 21% in Q1 FY27, with expectations for combined data centre and enterprise segments to reach 50% of revenues. Transcripts +1
The 63% projected increase in global optical-cable demand from data centres in 2026, driven by AI workloads, translates directly into revenue acceleration for both companies. AI data centres require 10x to 36x more fibre than traditional cloud infrastructure, creating exponential demand growth. The expansion of US data centre capacity from 150 GW to 300 GW over three years creates a geographic demand multiplier that directly benefits both companies' export-oriented strategies. Transcripts +1
Sterlite Technologies' attach rate expansion strategy—targeting 25% by FY27 from current 16%—leverages this fibre intensity increase. The company's attach rate represents the ratio of optical connectivity revenue to optical fiber cable revenue, and AI-driven demand creates a larger OFC base for attach rate expansion. HFCL's product portfolio positioning focuses on high-fiber-count cables (7,000-fibre and 14,000-fibre under development), which command "multiple high" pricing compared to standard telecom cables. Transcripts +1
Both companies have delivered exceptional margin improvements. Sterlite Technologies' EBITDA margin expanded to 20.8% in Q1 FY27, driven by data centre mix expansion (1% to 21% of revenues), improved capacity utilization, and attach rate growth. HFCL achieved 23.3% EBITDA margin (1,832 bps improvement from 4.9% in Q1 FY26) through a strategic transformation from EPC projects to product-led revenues (85% of revenues in Q1 FY27) and export expansion. Transcripts +1
Sterlite Technologies' achievement of net debt-free status with ₹483 crore cash balance significantly enhances its competitive positioning for large US hyperscaler orders. The company secured a landmark $1.1 billion multiyear contract with a global hyperscaler for AI data centre infrastructure through FY29, demonstrating the credibility that balance sheet strength provides with large customers requiring multi-year commitments. Transcripts +1
Sterlite Technologies' ₹18,618 crore order book (including the $1.1 billion hyperscaler order) provides concentrated near-term visibility, with ₹16,390 crore scheduled for Q3 FY27 and beyond. This concentration creates execution risks including capacity constraints, raw material supply chain vulnerabilities (germanium, helium), and working capital management challenges. HFCL's ₹26,665 crore consolidated order book with ₹22,000 crore five-year execution pipeline offers more diversified, longer-term visibility. Transcripts +2
The geographic mix creates different trade policy exposure profiles. Sterlite Technologies' 54% North America revenue creates higher direct sensitivity to US tariff changes, while HFCL's diversified export model (60+ countries) provides more balanced trade policy risk exposure. Sterlite faced 7% margin impact from tariff-related costs in one quarter, while HFCL reported minimal impact through lawful procedures and US court decisions. Transcripts
Sterlite Technologies' competitive advantages stem from its US manufacturing presence, advanced technology portfolio (Neuralis AI-focused data centre solutions, Hollow Core Fiber, Multi-Core Fiber), and IP-driven differentiation with 785 patents. The company's recent victory in a European patent dispute with Fujikura strengthens its intellectual property position and removes legal uncertainty surrounding strategic products. Transcripts +1
HFCL gains competitive advantages from its advanced high-fiber-count cable development (7,000-fibre completed, 14,000-fibre under development), positioning it among very few global manufacturers with these capabilities. The company's R&D-focused margin improvement strategy emphasizes cost-effective indigenous design and manufacturing excellence, with three dedicated R&D centers driving innovation. Transcripts +1
Despite strong margin expansion, both companies exhibit weak return ratios—Sterlite Technologies (ROCE 7.7%, ROE 1.2%) and HFCL (ROCE 8.8%, ROE 7.0%). This weakness stems from capital base expansion outpacing revenue generation, heavy capital expenditure programs, and business model transition costs. Sterlite's large QIP issuance expanded equity before revenue could scale, while HFCL's capacity expansion created temporary capital-revenue mismatch. Transcripts +1
Current EV/EBITDA valuations—Sterlite Technologies (38.2x 3Y median) and HFCL (27.8x)—reflect market expectations for sustained earnings growth from US data centre demand. Sterlite's premium valuation reflects its more advanced positioning (21% data centre revenue vs HFCL's 10%) and proven execution, while HFCL's more reasonable valuation incorporates execution risks. Transcripts
However, these premium valuations pose significant risks if structural demand tailwinds moderate. Key risks include growth expectation premium de-rating if AI-driven data centre expansion slows, margin sustainability concerns from input cost inflation or competitive pressure, and execution risk on capacity expansion programs. Both companies have demonstrated historical volatility and cyclical vulnerability, suggesting current strong performance should be viewed in context of these risks. Transcripts
The structural opportunity from US-China trade tensions and AI data centre expansion is real and significant, but successful investment requires monitoring leading indicators including US hyperscaler capex trends, competitive dynamics, and execution progress on capacity expansion programs.
