Nobody would have expected that a company classified under the display module sector, long overlooked by the market, has quietly secured the most complete hand of domestic PCM phase-change memory.

The dark horse in A-share storage — Tianshan Electronics
Target price 42 yuan, with 44% upside, but don’t jump in headfirst — hear me out first!
First, let’s talk about what everyone can see on the surface: the main business is just a safety cushion, not enough to fuel a double.
In 2025, revenue grew 21%, but net profit attributable to parent fell 5.6% — a textbook case of revenue growth without profit growth. Gross margin in Q1 this year directly slipped to 16.5%, relying on low-end standardized products to scale volume, making profitability thinner and thinner.
The only highlight is the automotive module, with shipments up 38% last year and the Lingshan production line steadily ramping up, but it still accounts for less than 20% — at best propping up the performance floor, nowhere near enough to drive a valuation reversal.
Looking at the display business alone, it’s just a mediocre segment leader, not worth your heavy position at all.
The real expectation gap: full-chain PCM storage — no second player of the same caliber in A-shares
This is the core — don’t just take it as an ordinary story:
It’s not concept-hopping; it’s truly achieved a full closed loop of storage granules + ASIC controller + module manufacturing, tied to the new storage technology + Tianlian Core within the Yangtze Memory system, following the domestic enterprise-grade storage route, directly benchmarked against Intel’s discontinued Optane
Why is Optane important? It was the world’s only mass-produced enterprise-grade PCM storage, and domestically it was almost a blank before. Once this line runs through, it fills the gap in domestic high-end storage — the replacement space for cloud vendors and data centers is in the tens of billions.
The gross margin elasticity is even more striking: main business gross margin is only 16%, while after storage module scales up, gross margin can surge to over 30% — essentially creating a new high-profit company
But why do I say don’t go all-in now? Because expectations have already been priced in largely in advance
PCM hybrid SSDs are still in small-batch customer validation, contributing almost no revenue in 2026. The most optimistic scenario is securing 1-2 cloud vendors for final designation by year-end, with actual volume release not until 2027
From the stock price trend, optimistic expectations have already been priced in for the most part. Entering now essentially means betting on validation exceeding expectations — once the landing is delayed, it’s a Davis double play, with extremely low margin for error
Plus, the half-year earnings window is approaching, and the main business gross margin is still declining — easy to first trigger an earnings bomb
My trading strategy: wait for two decisive inflection points, then add positions — no rush
1. Performance bottom inflection point: quarterly comprehensive gross margin stops falling and rebounds, and the automotive business share continues to rise. First, clear the landmine of the main business. Even if storage underperforms, the business floor holds, preventing major losses.
2. Logical confirmation inflection point: PCM hybrid SSD receives formal designation announcement from a leading cloud vendor. From “laboratory validation” to “customer order” — this is the key step where story turns into earnings, and the real starting point for valuation to rise
This is not a short-term speculative stock; it’s a high-odds target in a niche track.
If you can’t stand loneliness or wait half a year or more, don’t touch it. If you can hold and are willing to wait for the logic to materialize, this will be the most expectation-gap dark line in the storage sector this year.
Personal opinion, not investment advice.