KELIER is a leading provider of comprehensive solutions for high-difficulty industrial wastewater treatment. Founded in Shenzhen in 2014, we are a National High-tech Enterprise and a Specialized & Sophisticated SME with a portfolio of physics-first technologies deployed across energy, refining, power, and municipal sectors.
An engineering team built around hard problems.
Over 50 employees, with more than 26 dedicated to design and R&D — accounting for more than 80% of the company. Our bench includes Shenzhen high-level talents, doctoral and master’s degree holders, and senior environmental governance experts drawn from leading domestic and international design institutes and engineering firms.
Yantao Su
- Doctorate, Harbin Institute of Technology
- Postdoctoral, Peking University
- Shenzhen High-level Talent
Youhua Hu
- Doctorate, Central South University
- 15+ years across Fortune Global 500 and public companies
Xunxiang Shi
- Master, Ningxia University
- EMBA, Shanghai Jiao Tong University
- Multinational executive experience
A decade building deeper expertise in difficult water.
KELIER founded in Longgang, Shenzhen — with a mandate to solve high-difficulty industrial wastewater through physics-first innovation.
KELIER founded in Longgang, Shenzhen — with a mandate to solve high-difficulty industrial wastewater through physics-first innovation.
Awarded National High-tech Enterprise certification, validating KELIER's R&D-led approach to water treatment technology.
Awarded National High-tech Enterprise certification, validating KELIER's R&D-led approach to water treatment technology.
KELIER established headquarters in the Shenzhen High-tech Industrial Park, anchoring its presence in China's innovation core.
KELIER established headquarters in the Shenzhen High-tech Industrial Park, anchoring its presence in China's innovation core.
Joined the Belt and Road initiative — KELIER expands international deployments across energy and industrial sectors.
Joined the Belt and Road initiative — KELIER expands international deployments across energy and industrial sectors.
Recognised as an Innovative Small and Medium Enterprise in Shenzhen, affirming KELIER's status at the frontier of clean technology.
Recognised as an Innovative Small and Medium Enterprise in Shenzhen, affirming KELIER's status at the frontier of clean technology.
Awarded Specialized and Sophisticated SME status in Shenzhen — confirming KELIER's unique expertise in difficult water treatment.
Awarded Specialized and Sophisticated SME status in Shenzhen — confirming KELIER's unique expertise in difficult water treatment.
Mobile equipment exported to Poland — KELIER enters the EU market, marking a major step in its international expansion.
Mobile equipment exported to Poland — KELIER enters the EU market, marking a major step in its international expansion.
Representative deployments across KELIER’s core technology platforms in energy, refining, and environmental sectors.
State Oilfield Operator
Produced Water Treatment
National Offshore Oil Corp.
Oil Sludge Wash Water Treatment
National Refining Corp.
Desalter Cut Water Treatment
Heavy Oil Power Station
Oily Wastewater Treatment
National Oil Company Refinery
Refinery Coking Acidic Water Treatment
National Petrochemical
Crude Oil Tank Farm Wastewater Treatment
National Oil Corporation
Desalter + Tank Farm Black Water Treatment
Oilfield Operator, Phase I
Produced Water Comprehensive Treatment
National Petrochemical
Desalter Drainage Deoiling Wastewater Treatment
Oilfield Operator, Phase II
Produced Water + Fracturing Flowback Treatment
Industrial Wastewater Operator
Mobile Hazardous Wastewater Treatment
Selected reference projects. Capacities shown are system design throughput. “Coalescence” denotes KHC coalescing separator stage; “KFM” denotes SFM self-clean filter medium stage.
The principles that guide every decision we make.
Fairness
We treat every client, partner, and colleague with impartiality and equity. Our technical proposals are built on honest engineering, not commercial convenience — and every contract reflects the true scope and value of our work.
Accountability
When we commission a system, we own its performance. Our engineers stay engaged through startup, optimisation, and beyond. We do not walk away from a challenge — we document it, solve it, and build the knowledge back into the next design.
Honesty
We say what we mean and mean what we say. If a technology is not right for a client's conditions, we will say so. Our reputation rests on honest technical counsel — not on telling clients what they want to hear.
Respect
We respect the environments in which we work — physical, professional, and natural. Every system we design minimises chemical load and sludge. Every relationship we build — with clients, communities, and our own people — is treated as a long-term investment.
Standards that govern every aspect of how we work.
KELIER maintains eight formal corporate policies covering quality, safety, environment, and conduct. Together they define our commitment to operating with integrity across every site and relationship.
PDF — Corporate Policy Manual 2025
ISO 9001-aligned standards governing every design, manufacture, and delivery.
Zero-harm target across all sites, systems, and personnel activities.
Safe vehicle operation and journey management for all business travel.
A respectful, inclusive environment free from harassment and discrimination.
Focused, professional, and safe use of devices in all work contexts.
Impairment-free operations — protecting people, process, and performance.
ISO 14001-aligned commitment to minimising environmental impact in all activities.
Integrity in every transaction — zero tolerance for bribery or fraud.
In 2030, KELIER will be a powerful enterprise, nationally and internationally known in the industrial and energy sector, recognised for the high quality and safety of its processes and services.
KELIER is committed to Health, Safety, and Environment excellence. Our ISO 14001-certified Environmental Management System ensures every system we design has the smallest possible chemical footprint and a zero-harm mandate for our people and communities.
Jaylen Jian
Chief Executive Officer
Certified, patented & internationally recognised.
Three ISO management-system certificates, 37 granted patents, and an international PCT — all independently verified by accredited bodies.
Quality Management System
Per ISO 9001:2015 standard
Environmental Management System
Per ISO 14001:2015 standard
Occupational Health & Safety Management System
Per ISO 45001:2018 standard
Integrated ozone oxidation and flotation wastewater treatment system
International Patent Application
Let's solve your toughest water challenge.
From feasibility study to commissioning, our engineers partner with your team to design, deploy, and sustain treatment systems built for the hardest conditions.