Confirmed: A 13.5-Billion-Yuan Market—Ceramic Structural Components for Optical Modules See Explosive Growth

Amid the frenzy over AI computing power, the market has flocked to optical modules and optical chips, yet it has overlooked a "hidden gem" sector—ceramic structural components for optical modules—whose high-growth potential has been confirmed by institutional analysis.

Data from Cailian Press’s on-the-ground industry chain research—cross-verified and consistently cited by multiple industry intelligence agencies—indicates that the domestic market for ceramic structural components used in optical modules will reach RMB 13.5 billion by 2026, with ceramic substrates accounting for RMB 9.9 billion of that total. By 2027, the market is projected to surge to RMB 20–22 billion, representing an annual growth rate exceeding 60%. As a high-growth materials sector within the upstream computing power supply chain, the industry is poised for a simultaneous rise in both volume and price.

Constrained by raw material limitations and lengthy capacity expansion cycles, the production capacity for high-end Japanese ceramics continues to contract. This has widened the supply-demand gap, making the localization of supply chains an inevitable trend.

I. Authoritative Data Confirmed: A RMB 10-Billion-Plus Market by 2026,

Doubling in Size by 2027

The total market for optical module ceramic structural components is valued at RMB 13.5 billion for 2026; beyond the RMB 9.9 billion attributed to ceramic substrates, ancillary components—such as ceramic housings and TEC (Thermoelectric Cooler) heat-dissipation ceramics—account for RMB 3.6 billion. The industry is set to surge to RMB 20–22 billion by 2027, with a growth rate approaching 60%, marking it as a rare, high-certainty growth sector within the computing power landscape.

The core driver of this explosive growth is the significant increase in per-unit value resulting from the iteration of high-speed optical modules. Established patterns of technological evolution show that low-speed optical modules (400G and below) require only low-cost alumina ceramics, resulting in very low unit value. In contrast, 800G optical modules have fully transitioned to high-thermal-conductivity aluminum nitride ceramics, substantially increasing the value of ceramic consumables per module. For 1.6T optical modules, ceramic costs rise to 8%–12% of the total, unlocking a "double dividend" of increased shipment volumes and higher unit prices.

Fujian Huaqing Aluminum Nitride Ceramic Product Series

Unlike conventional materials, aluminum nitride (AlN) ceramics are an indispensable, irreplaceable material for high-speed optical modules. Their ultra-high thermal conductivity (170–230 W/mK) addresses the critical issue of overheating in 1.6T and 3.2T optical chips, ensuring long-term, stable equipment operation. Furthermore, their extremely low dielectric loss meets the demands of high-frequency, high-speed signal transmission and makes them the standard substrate material for next-generation Co-Packaged Optics (CPO) technology, underpinning solid industry demand.

II. Severe Supply-Side Imbalance: Japanese Production Capacity Constrained,

Opening a Window for Domestic Substitution

Behind the industry's rapid growth lies a long-standing structural supply-demand gap. The global market for high-end aluminum nitride powder and substrates has long been dominated by Japanese companies, which hold over 70% of the high-end market share. Two pivotal changes in the industry landscape in 2026 have fundamentally disrupted the status quo: first, the supply of key overseas raw materials has tightened, and Japanese manufacturers have voluntarily reduced production; second, the construction and process optimization of high-end ceramic production lines take over two years, meaning no new capacity will come online in the short term. These factors have directly led to significantly extended delivery times and steadily rising prices for high-end substrates, creating a supply shortage that is unlikely to reverse in the near future.

Stringent industry barriers have further raised the threshold for market entry. The ceramic sector for optical modules faces four formidable barriers: high-purity powder synthesis technology, micron-level precision tape casting and sintering processes, high-precision metallization and circuitry, and a lengthy 2–3 year customer certification cycle. Faced with these multiple hurdles, very few domestic companies possess the capability for mass-producing high-end 1.6T substrates; consequently, the industry exhibits a pronounced "Matthew effect," with leading enterprises continuing to reap the benefits.

To mitigate risks associated with overseas supply chains, downstream optical module manufacturers are actively initiating localization and certification processes to replace imported products. Domestic substitution has shifted from being "optional" to "essential," ushering in a golden era of growth for leading domestic players.

III. Three-Fold Growth Logic Secures Long-Term Prosperity

1. Continuous iteration of optical modules drives simultaneous growth in volume and price. The evolution from 800G to 3.2T modules consistently boosts the value of individual ceramic components; coupled with a projected doubling of high-speed optical module shipments between 2026 and 2027, the industry is poised for explosive, high-certainty growth.

2. CPO unlocks a second growth curve. As a core technology for next-generation computing power, the CPO architecture significantly increases the consumption of ceramic materials. With commercial adoption set to begin in 2027, this creates long-term growth potential; Fujian Huaqing has secured a first-mover advantage by proactively developing compatible products.

3. Vast potential for domestic substitution. The localization rate for high-end substrates remains low, and Japanese production capacity continues to face constraints. Leading domestic players can steadily capture 5%–10% of the overseas market share annually, representing billions in incremental growth driven by domestic substitution.

With an existing market value of RMB 13.5 billion and an incremental potential of RMB 22 billion, the "hidden" computing infrastructure sector of optical module ceramics has had its strong growth prospects confirmed by authoritative data. While the market currently focuses heavily on complete optical module units, the upstream core ceramic materials are undergoing a significant revaluation.

Source: Huaqing Longhu Semiconductor Industrial Park

Original Article: Confirmed RMB 13.5 Billion Market! Optical Module Ceramic Components Surge; Fujian Huaqing Positions Itself to Capture Domestic Substitution Dividends

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