The supply chain for high-end precision equipment harbors a long‑overlooked weak link: the environmental control subsystem. For lithography machines, interferometers, and wafer inspection stations, the core processes are often far more sensitive to ambient temperature, humidity, cleanliness, and vibration than the design margins built into the equipment itself. Historically, these sophisticated environmental control systems have been almost entirely sourced from overseas suppliers—German temperature‑control units, Japanese high‑efficiency filtration modules, and U.S. ultra‑precise chillers. Equipment manufacturers have grown accustomed to an “imported complete system with in‑house integration” model, treating the environmental control subsystem as a black box that is simply embedded; when issues arise, they wait for overseas engineers to fly in and for spare parts to clear customs by sea. When supply chains remain unimpeded, this is merely a cost concern; but when disruptions occur, it becomes a matter of survival.

In recent years, profound shifts in the global supply chain have turned this reliance from a latent concern into a tangible bottleneck. Uncertainty in the cross-border supply of high-end precision equipment has risen sharply—lead times have stretched from predictable months to unpredictable stretches of more than a dozen cycles, and after-sales technical support, once available on short notice, now requires lengthy coordination and waiting. Domestic equipment manufacturers are facing a common predicament: Equipment hosts can be manufactured, but acquiring advanced environmental control subsystems is becoming increasingly difficult; even when secured, the ability to manage subsequent maintenance, spare parts, and upgrades remains out of one’s own hands. In the niche market of high-precision environmental control, the number of globally capable suppliers is relatively limited, making domestic substitution an inevitable choice.

Jice (Nanjing) Technology Co., Ltd. It is precisely at this juncture that they arrived at their own solution: rather than simply “purchasing imported components and assembling a system,” they opted to start from the most fundamental, core-level parts and progressively build, layer by layer, a fully independent precision environmental control subsystem. Through in-house research and development… Millikelvin-level precision environmental control technology …achieving core performance metrics such as air temperature stability within ±0.002℃, humidity stability within ±0.1%RH, cleanliness at ISO Class 1, and outlet water temperature stability within ±0.002℃. This is not a downgraded version of import substitution; rather, it benchmarks against world‑class performance, delivering empirical data that withstands third‑party calibration and rigorous production‑line validation.

Why must we start with components? Because precision environmental control is not a generic piece of equipment; it is shaped by an end-to-end, tightly coupled design that spans from the cold source to the terminal unit, and from airflow management to control algorithms. More importantly, a “domestically produced system” that relies on imported components essentially shifts supply-chain risks from the system level down to the component level.

In the high-precision environmental control sector, Jice occupies a position that enables domestic high-end equipment manufacturers to select a reliable, domestically‑produced supplier for their environmental control subsystems when undertaking system integration. We do not seek to replace equipment manufacturers; rather, we aim to fill the missing link in the industry chain. As more and more domestic equipment makers turn to Jice as a partner for their environmental control subsystems, the industry’s supply chain shifts from “single-point reliance on overseas sources” to “multi‑point domestic support.” This is not merely a matter of one company’s business—it serves as a critical safety net for the entire sector.