China Unicom (Huailai) Big Data Innovation Industrial Park (中国联通（怀来）大数据创新产业园) is a data center project in Zhangjiakou, China, operated by China Unicom (中国联通). It is operational and expanding. It is planned for 244 MW of IT load.
Latest change on record: moved to expanding on 28 August 2026. Record last checked against its sources on 19 October 2026.
This project is built or running, so every gate counts as passed.
Build odds is ArusGrid's reading of the public record, not a forecast, a rating or advice. It counts the gates this project has passed in public sources. Private progress does not show, a passed gate can be undone, and projects that pass every gate still stop. The method has not yet been tested against outcomes. How it works.
Huailai holds 8 active projects with 1,294 MW of planned IT load between them, and China Unicom (Huailai) Big Data Innovation Industrial Park (中国联通（怀来）大数据创新产业园) ranks second by planned capacity. Of those, 2 are operational, 5 are operational and expanding and 1 is under construction. No third party publishes a colocation vacancy rate for Huailai, and ArusGrid does not estimate one.
China Unicom has 9 others in China tracked by ArusGrid, including China Unicom Zhongwei Cloud Data Center, China Unicom Southwest Data Center (Chongqing Shuitu) and China Unicom Western (Chongqing) Science City Digital Innovation Industry Base. It sits on the China Unicom Huailai Big Data Innovation Industrial Park. Named users of the compute are ByteDance, Tencent and Sina (reported, unconfirmed).
The build is phased. Phase 1, over 3,000 racks (Data Port invests and operates) is operational; Full park, 8 data centre buildings at 244 MW is expanding. The dated record runs from announced only on 24 July 2020 to operational and expanding on 28 August 2026. Power comes from unknown through a dedicated substation at 110 kV (reported, unconfirmed).
The US export control position for advanced AI chips in China, as of 7 October 2026, is recorded as “Licence required, presumption of denial, case-by-case review for H200-class chips since 15 January 2026”. ArusGrid holds 6 public sources for this project, the latest dated 28 August 2026, and last checked the record on 19 October 2026.
Running capacity. The site is operational or expanding. The rules are fixed and published on the Methodology page.
Planned compute of about 18 EFLOPS at full build (C114 and 通信产业报, Aug 2026).
A party to this project (its operator, that operator's group, a funder, or a confirmed client) is headquartered in China or Macau or has an ultimate parent there. US rules require a licence for advanced AI chips destined to such entities wherever they are located. This describes the rule and says nothing about whether a licence was sought, granted or refused. Criteria are published on the Methodology page.
Licence required, presumption of denial, case-by-case review for H200-class chips since 15 January 2026 · Licence required, presumption of denial, case-by-case review for H200-class chips since 15 January 2026 (2026-10-07) source
No published price band exists for China, and ArusGrid does not estimate from the regional benchmark alone. What was searched is listed on the Colo prices page.
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