About us

> About us

Founded in 1993, Prominent International (Environmental) Ltd. offers various services relating to the design and built of industrial waste air and wastewater treatment system, environmental consultant and ozone technology. Our well known clients include : Esso, Caltex, Union Carbide, Motorola, NXP Semiconductors, Wong’s Circuits, Elec and Eltek, ASM and Possehl Electronics etc.

In 2003, we have developed and manufactured our own brand “ PIE Ozonation “, the industrial grade ozone machines. Two companies were established and committed to develop Hong Kong, Overseas and China markets respectively.

PIE Ozonation (Hong Kong) Ltd. and

PIE Ozonation (Shen Zhen) Ltd.

Scopes of technology provided by PIE Ozonation

  • Air treatment
  • Water treatment
  • Other disinfection and purification process

Main business

  • Odor removal
  • Food and drugs processing
  • Laundry
  • Swimming pool and spa
  • Cooling tower water treatment
  • Aquaculture and agriculture
  • Air disinfection and surface disinfection
  • Waste air / water treatment
  • Consultancy services : environmental hygiene, food and drugs processing etc.

Products and services

  • Offer the solutions and design proposal
  • Provide ozone machine, the parts and the associated equipment
  • Technical supports and after sale services
  • The testing services of air and water, e.g. microbial testing

Our major clients and end users

We have a wide spectrum of client base in Hong Kong. Our clients cover a number of government sectors, developers, NGOs, hotels, elderly homes, drug manufacturers, food processing companies, hotels and etc. For details, please refer to our job reference.