Zi Group Family

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Explore the sister companies and subsidiaries under the Zi Group umbrella.

01 Water Solutions

Green Dot Limited

Green Dot Limited is the flagship water solutions company of Zi Group. It delivers complete purification systems for homes, industries, and institutions — from household purifiers and filter media to full-scale Water Treatment Plants (WTP). With a strong focus on safe drinking water and dependable after-sales support, Green Dot helps communities and businesses access cleaner, healthier water every day.

Water Purifiers Filter Media WTP Projects Institutional Supply

greendotbd.com

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02 Manufacturing

Water Birds Ltd.

Water Birds Ltd. manufactures durable water storage and distribution products under the Zi brand. Its portfolio includes Zi Tank, Zi HDPE Pipe, and Zi FRP Vessel — engineered for strength, hygiene, and long service life. From residential tanks to industrial piping systems, Water Birds supports reliable water infrastructure across Bangladesh.

Zi Tank HDPE Pipe FRP Vessels Storage Systems

waterbirdsbd.com

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03 Engineering

ABM Engineering Ltd.

ABM Engineering Ltd. specializes in the precision manufacturing of water purifiers, filter cartridges, and treatment accessories. Combining modern production standards with consistent quality control, the company supplies reliable components and finished systems that keep purification plants and household units performing at their best.

Purifier Assembly Filter Cartridges Accessories Quality Control

abm.com.bd

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04 Infrastructure

ABM Infra Ltd.

ABM Infra Ltd. focuses on real-estate and infrastructure development built on reliability, modern design, and long-term value. The company delivers projects that support growing urban needs — combining structural quality, practical planning, and a commitment to creating spaces people can trust for years to come.

Real Estate Infrastructure Project Development Long-term Value

abminfrabd.com

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05 Treatment Systems

NS BD Corporation

NS BD Corporation provides advanced water and water-treatment solutions for institutional and industrial clients. Backed by technical expertise and practical field experience, the company designs and supplies systems that improve water quality, process efficiency, and operational reliability for demanding environments.

Treatment Plants Industrial Systems Technical Support Custom Solutions

www.facebook.com

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06 Heavy Equipment

One Tech Machineries

One Tech Machineries supplies construction, infrastructure, and heavy equipment to global standards. Serving contractors and industrial projects, the company helps clients access dependable machinery and equipment solutions that keep large-scale work moving safely, efficiently, and on schedule.

Construction Gear Heavy Equipment Infrastructure Supply Industrial Projects

onetechmachineries.com

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