Samuel Essuman is a notable figure in Ghana's agricultural and environmental sectors, serving as the Founder of Extech Agricultural Services and the Vice President of the GAYO Eco-Clubs at Takoradi Technical University. Under his leadership, Extech Agricultural Services has been instrumental in promoting organic farming practices, focusing on the sustainable production of vegetables and staple crops. The company is also developing a mobile application aimed at optimizing agricultural demand and supply chains, thereby enhancing market efficiency for farmers.

In his role with the GAYO Eco-Clubs, Essuman has been actively involved in environmental advocacy and youth engagement. His dedication to these causes was recognized when he secured third place at the Youth Innovation Circles Pitch Demo Day in Takoradi, earning a cash prize of 5,000 cedis for his innovative contributions to sustainable agriculture.

For a more in-depth understanding of Samuel Essuman's work and vision, you can watch his feature on SUPIS '24, where he discusses Extech's mission and the future of agriculture in Ghana.

Co-Founder

Isaac Adjina Tetteh is a passionate agripreneur, climate advocate, and the Co-Founder and Deputy CEO of Extech Agricultural Services. He also serves as the CEO of Greenfields Agro Limited, where he spearheads operations in organic vegetable production and climate-smart agriculture. With a strong focus on sustainable farming and youth empowerment, Isaac plays a critical role in stakeholder engagement, advocacy, team leadership, and capacity building within the agribusiness space. Through his leadership, Extech has expanded its reach and impact in promoting agroecological practices in Ghana.

Currently pursuing a Bachelor of Technology in Electrical and Electronic Engineering at Takoradi Technical University, Isaac combines his technical knowledge with his passion for agriculture. His academic background is complemented by practical experience gained through internships at Twifo Oil Palm Plantation, AngloGold Ashanti, and Power Solutions Engineering Works, where he specialized in electrical maintenance, instrumentation, and industrial installations. He is also proficient in data analysis tools like Power BI, web development, and digital design, which he uses to enhance agribusiness visibility and efficiency.

Beyond his professional and academic endeavors, Isaac is actively involved in youth leadership and climate advocacy. He serves as the Welfare Chairperson of the Green Africa Youth Organization (GAYO) TTU Chapter. He is a proud participant of the Mastercard Foundation’s HAPPY Program and a member of the Youth Leadership Parliament under the International Youth Network for UN Security Council Resolution 2250. Isaac’s work reflects a deep commitment to building climate-resilient food systems and empowering young people to take leadership roles in sustainability.

Isaac Agyapong serves as the Financial Manager of Extech Agricultural Services, where he plays a crucial role in ensuring the financial sustainability and growth of the company. With a strong background in financial management, accounting, and agribusiness economics, he oversees financial planning, budgeting, and investment strategies to optimize resources and drive profitability.

As an expert in financial data analytics, Isaac utilizes tools such as Power BI, Microsoft Excel, and Cash Book software to track expenditures, forecast revenue, and maintain transparent financial records. His expertise in cost control and risk management ensures that Extech Agricultural Services operates efficiently while maintaining its commitment to sustainability and organic farming.

Beyond financial planning, Isaac works closely with the management team to develop strategic business models that align with the company’s mission of promoting organic agriculture and smart farming solutions. He is also responsible for securing funding opportunities, managing financial audits, and ensuring compliance with industry regulations.

His leadership in financial operations has been instrumental in expanding Extech Agricultural Services, supporting its innovative initiatives such as the mobile app for demand and supply services, organic weedicide production, and urban smart agriculture projects.

Isaac is passionate about agribusiness development and financial literacy for farmers, advocating for sustainable investment strategies that empower smallholder farmers and agripreneurs. His dedication to financial excellence continues to shape Extech’s success in the agricultural sector.

Emmanuel Aqua – Agrochemicals Production Manager, Extech Agricultural Services

Emmanuel Aqua is the Agrochemicals Production Manager at Extech Agricultural Services, where he leads the development and production of organic weedicides and other eco-friendly agricultural inputs. With a strong background in agrochemistry and sustainable farming practices, he ensures that all products meet high-quality standards while being environmentally safe.

Emmanuel plays a key role in research and innovation, focusing on the formulation of organic alternatives to synthetic agrochemicals. His expertise in biological pest and weed control solutions helps farmers adopt climate-smart and sustainable farming methods without compromising soil health and crop productivity.

At Extech, he oversees the entire production process, from raw material sourcing and formulation to quality control and distribution. He works closely with farmers, agronomists, and industry experts to develop effective organic solutions that enhance agricultural productivity while protecting ecosystems.

Emmanuel is also responsible for regulatory compliance, ensuring that Extech Agricultural Services adheres to national and international standards for organic agricultural inputs. His leadership in eco-friendly agrochemical production has positioned the company as a pioneer in sustainable farming solutions.

With a passion for green agriculture and innovation, Emmanuel Aqua is committed to advancing organic farming technologies and equipping farmers with the tools they need to cultivate healthier, chemical-free crops. His contributions continue to drive Extech Agricultural Services toward its mission of transforming agriculture through sustainability and innovation.

Rebecca Dacosta serves as the Quality Assurance Manager at Extech Agricultural Services, where she ensures that all agricultural products, including organic vegetables, crops, and agrochemicals, meet the highest standards of quality, safety, and sustainability. With expertise in quality control, food safety, and agricultural best practices, she plays a pivotal role in maintaining the company's commitment to excellence.

Rebecca oversees the entire quality assurance process, from seed selection and soil health monitoring to post-harvest handling and packaging. She implements strict quality control measures to ensure that Extech’s organic produce remains free from harmful chemicals, retains its nutritional value, and meets market requirements.

In the production of organic weedicides and other agrochemical products, she conducts rigorous testing and analysis to verify their effectiveness, environmental impact, and compliance with regulatory standards. Her work is essential in certifying that all Extech products align with organic farming guidelines and industry best practices.

Beyond product testing, Rebecca also leads training programs for farmers and staff on quality management systems, food safety protocols, and sustainable farming techniques. She works closely with regulatory bodies to ensure that Extech Agricultural Services operates in full compliance with local and international agricultural quality standards.

Her dedication to precision and sustainability has positioned Extech as a trusted provider of organic and eco-friendly agricultural solutions. With her expertise, the company continues to build a reputation for reliability, excellence, and environmental responsibility in the agricultural sector.