Fiberglass, A Core Theme in The AI ​​industry Chain That Has Been Underestimated

I. Why Fiberglass is an Undervalued Theme

Fiberglass is a core material for many hot and high-growth industries, including AI computing power, new energy vehicles, photovoltaics, construction, and wind power.

Fiberglass is a high-performance inorganic non-metallic material made from natural minerals such as quartz sand through processes such as high-temperature melting, drawing, winding, and weaving. It possesses high strength, corrosion resistance, and good insulation properties, earning it the title of "21st-century green industrial material." Electronic cloths and yarns made from fiberglass are indispensable core components in high-end fields such as PCBs, semiconductors, and new energy.

II. Upstream: Quartz Sand, the Core of Fiberglass Production

Let's first discuss the upstream, quartz sand, which is the core raw material for fiberglass production. The price of quartz sand directly affects the gross profit margin of fiberglass companies. The scarcity of high-purity quartz sand production capacity is a key factor, directly determining the quality and cost of fiberglass. The explosive demand for high-purity quartz sand from photovoltaics and semiconductors has simultaneously led to a tight supply of sand for fiberglass, representing a "first-mover advantage" in the industry chain.

III. Core Links in Midstream Fiberglass Manufacturing

The midstream sector is the core manufacturing link in the fiberglass industry chain. The global fiberglass industry is highly concentrated, with leading domestic companies accounting for over 70% of global capacity, making it a typical domestically advantageous industry. The recovery in downstream demand from wind power, new energy vehicles, and photovoltaics has driven both volume and price increases in fiberglass, which is the core driving force behind the sector's rise.

IV. Downstream Electronic Fabric and Electronic Yarn-Deep Processing and Applications of Fiberglass

Downstream fiberglass deep processing and applications, with electronic fabric and electronic yarn being key materials in high-end fields such as PCBs, semiconductors, and new energy, represent a "high value-added link" in the fiberglass industry chain. Electronic fabric/electronic yarn represents a high-end sub-sector of the fiberglass industry with gross profit margins far exceeding those of ordinary fiberglass, representing a core direction for upgrading. Benefiting from high-growth sectors such as AI computing power, new energy, and semiconductors, it acts as a "flexibility amplifier" for the industry chain.

V. Core Demand Logic of Upstream and Downstream Fiberglass

Upstream costs are primarily driven by natural minerals such as quartz sand, with supply and price directly determining midstream profitability. The midstream is a highly concentrated manufacturing sector where leading companies dominate global supply and demand due to their scale and cost advantages, with product prices and profitability fluctuating with industry cycles. Downstream demand is driven by wind power, lightweighting of new energy vehicles, electronic PCBs (electronic yarn and electronic cloth), and building materials. High-end products and strong downstream demand drive both volume and price increases in fiberglass. The entire chain exhibits a transmission relationship of upstream cost-driven growth, midstream cyclical pricing, and downstream growth empowerment.