From September 2–4, the Global Water Expo convened key players in the water technology sector at the Riyadh Front Exhibition & Conference Center in Saudi Arabia. The event featured more than 300 companies from 25 countries, highlighting innovations in seawater desalination, wastewater treatment, and smart water management, with a focus on building cross-border partnerships.
GreenTech signs MoUs with MediSun at Global Water Expo 2025
GreenTech introduced two products, Newater House and WateRobot, alongside the signing of two memorandums of understanding (MoUs) with Singapore-based MediSun Energy, a specialist in integrated brine management. The agreements mark a milestone in GreenTech’s strategy to accelerate global market entry and broaden its international footprint.
The partnership integrates GreenTech’s modular water treatment system, Newater House, with MediSun’s advanced brine management solutions.
Newater House is a smart prefabricated water plant designed for industrial manufacturers, parks, and municipalities. It supports both brackish water (BWRO) and seawater reverse osmosis (SWRO) systems, while offering standardized design, factory-built production, and artificial intelligence-driven operation through WateRobot, and after-sales support. By integrating MediSun’s reverse electrodialysis and selective electrodialysis metathesis solutions, the collaboration aims to improve energy recovery and reduce the environmental impact of brine discharge.
WateRobot, GreenTech’s AI agent, applies proprietary predictive process optimization, multimodal sensing (including computer vision, audio, and infrared), and large language reasoning models. It operates on a closed-loop online-to-offline system, enabling autonomous, safe, and cost-efficient management of plant operations.
Together, the companies are positioning their offering as a high-efficiency, low-energy, integrated solution aimed at addressing some of the world’s most pressing water challenges.
Global impact and Vision 2030 alignment
Under the agreements, GreenTech will bring MediSun’s brine treatment solutions to China, while MediSun will promote Newater House across the Middle East and Africa.
Eric Zhang, chairman of GreenTech, said:
“This partnership combines global innovation with local expertise in Saudi Arabia. Through our collaboration with MediSun, we are supporting Saudi Vision 2030 and bringing sustainable water solutions to international markets.”
Joseph Chua, co-founder and president of MediSun, added:
“Partnering with GreenTech is a pivotal step in our growth. We look forward to accelerating deployment of the Newater House and expanding into key markets.”
The collaboration supports Saudi Arabia’s Vision 2030 agenda to establish the kingdom as a global hub for advanced desalination technology. Starting with local deployment, the companies intend to strengthen regional water security and scale sustainable water solutions globally.
About GreenTech
GreenTech develops advanced water treatment and resource recovery systems, providing end-to-end solutions through investment, construction, operations, and services. Guided by the vision “AI for water freedom,” its strategy focuses on resource recovery, digitalization, and product-based solutions.
Through Newater House and WateRobot, GreenTech serves industries including photovoltaics, printed circuit boards (PCBs), new materials, power generation, textiles, coal, and chemicals. The company’s work addresses water scarcity, operational costs, and environmental pressures.
About MediSun Energy
MediSun Energy is a Singapore-based company specializing in integrated brine management. Its technologies convert desalination brine and industrial waste streams into reusable resources using energy-efficient, circular processes. MediSun’s portfolio, which includes reverse electrodialysis, electrodialysis metathesis, and carbon dioxide mineralization, supports decarbonization in energy-intensive areas such as desalination and contributes to resource security.
This press release was published in partnership with GreenTech.