K Alexander Stewart

C.Chem. F.R.S.C. M.I.M.M


Mr K. Alex Stewart founded the Alex Stewart International organization in 1978 after first gaining extensive experience in all aspects of sampling and assaying. Advancing from basic laboratory duties, Alex Stewart went on to gain a First Class Honours degree in chemistry and become an Associate and Fellow of the Royal Institute of Chemistry. Alex Stewart has more than 64 years of experience in the metal business. Alex Stewart was at the vanguard of developing modern assaying techniques and undertook research works in Atomic Absorption Spectroscopy as a new analytical method, especially for the determination of gold and silver.

While working at Alfred H. Knight, he introduced the company to the full Platinum Group Analysis associated with both Atomic Absorption and Fire Assay techniques. In 1967 Alex Stewart became a Director of Alfred H. Knight and was largely responsible for the worldwide expansion of the company during the next decade.

In 1977 he started his own companies Alex Stewart Assayers Ltd and AS Metallurgy Liverpool Ltd and built up a highly successful inspection and laboratory business in Knowsley, Liverpool. He continued putting his knowledge of the metal business, managerial and people skills toward building up the network of other Alex Stewart companies to become one of the leading independent inspection and metal assayers in the world, acknowledged and accredited by reputable and well known metal institutions such as IPMI, LME, BIR and LBMA. In 2004, Alex Stewart Agriculture was merged by acquiring the A. Norman Tate and Huson and Hardwick Laboratories to provide GAFTA, FOSFA and UKAS accredited analysis for soft commodities such as grains, oilseeds, oils and fats to traders, millers, refiners and farmers mainly in Argentina, Brazil, Chile, India, Indonesia, Malaysia, Peru, Thailand, UK and the Ukraine. In 2010, AS International’s specialist metal laboratory became the newest partner to provide inspection and analytical services to the metal industry and became the business hub of the Alex Stewart International network of inspection offices.

In 2013, Alex Stewart expanded its metallurgical, inspection and analytical services with the incorporation of a new metals laboratory located in Sefton Business Park, Liverpool, England, and from August 2016, trades as AS International Corporation Ltd

Alex Stewart was a lifelong supporter of Liverpool Football Club and proudly witnessed the club win an almost unparalleled 56 major trophies.

Graham Stewart

BA Hons, Dip mgt

Managing Director

Graham Stewart has been involved in a wide range of aspects of the business for more than 25 years. He is a graduate in Professional Management and Languages and has a diverse experience of inspection and organisation skills including commercial and financial aspects such as website optimisation, sales, and acquisitions and reviving industry important laboratories including A. Norman Tate and Huson and Hardwick. Graham has travelled and worked extensively in South America and helped set up the company’s diversification into the agriculture business in Argentina, Brazil and Uruguay. Since 2004 he has led the UK Company into the soft commodities business, Alex Stewart Agriculture Ltd. More recently Graham led the project for developing ASi’s newest laboratories in Aintree, Liverpool.

Desmond McMillan


Chief Chemist

Des McMillan started his career at Bootle Analytical Labs in 1985 which specialised in general analytical services to industry as a junior laboratory assistant. He moved to Central Edible Oils in 1988 as an Oil QC analyst and Inspectorate Environmental in 1991 specialising in environmental analysis. He moved to Alex Stewart in 1994 as an analytical chemist and became Chief Chemist of Alex Stewart Agriculture in 2004. He played a key part in integrating the reputable A. Norman Tate and Huson and Hardwick laboratories to the Alex Stewart set up and is a specialist at designing new laboratory installations. Des has been the Chief Chemist of Alex Stewart International’s HQ laboratories since 2007 and also the company Quality Manager. In 2011, he successfully led the laboratories to UKAS ISO 17025 accreditation. Des also played an instrumental part in designing two modern laboratories for the ASI Group.

Glenn Forbes

Global Business Executive

Glenn Forbes has 30 years’ experience within the industry and joined the Alex Stewart International in 1997. He originally held the position as Cargo Superintendent for dry and oil cargoes in the agricultural field, before taking over the role as Inspections Director for Alex Stewart Agriculture. He has been heavily involved in training and operational programmes for clients and has spent considerable time in Argentina, Brazil, Bulgaria, India, Italy, Kazakhstan, Latvia, Malaysia, North America, Philippines, Russia, Scandinavia, South Africa, Spain, Turkey, Ukraine, UK and many others training and developing staff in all aspects of agriculture inspections. Glenn is a fully qualified in draft surveys, seed sampling, pest detection and agriculture and regularly participating in GAFTA, FOSFA and IFIA committees, and also lecturing for their international training courses.

Wilson Faifer

Brazilian Business Executive

Wilson Faifer: Agricultural Engineer, with MBA in USP – University of São Paulo/Brazil. Wilson has worked 3 years with Ciba Geigy, 12 years with DuPont Chemicals, 3 years in Trading Company and has been working for 3 years now with Alex Stewart International. Wilson specializes in agriculture products, traceability, GMO, and complex negotiations with investors (banks, funds), clients and CMA Companies.

Juan Carlos Morandeyra

Argentine Business Executive

Juan Carlos joined the ASA Group in 2002, after 20 years working in several operations and management positions in the field of inspection and agricultural. He has been at the forefront of research and development inspections for a wide and diverse range of products and commodities. His business management led him to assume responsibilities for inspection in Argentina and Uruguay ensuring quality and quantity certification in line with FOSFA, GAFTA and ISO standards and procedures.

Krishnan Vadivelu

SE Asia Business Executive

Krishnan Vadivelu has over 30 years working in the surveying industry, extensively trained in all aspects; Certified and Qualified Palm Oil and Agri Surveyor by MPOB, FOSFA, GAFTA, attended and possesses various Marine Courses and Certificates; Pipeline Coating, IOPP-Oil Pollution, Finance. Working with Alex Stewart Malaysia for the past 5 Years in the position of General Manager and Director. Former Deputy GM of BSI Inspectorate and having specialise experience in handling and managing Governmental Customs Contract and CMA for Petronas (MITCO) & Maybank.

Chen Wei Dong

Asia Pacific Business Executive

Weidong is a fully qualified independent Inspector / Surveyor with 23 years' experience. He joined Alex Stewart International's diversification in the field of independent Inspection, Sampling and Testing of various commodities, particularly grains, oils & oilseeds, fertilizers and other soft commodities for which he has played a key role in helping set up internationally integrated inspection and testing services in China, Australia, and the Americas. He keeps closely in touch with all necessary Agriculture Business Events associated with Asia Pacific and the Americas.

Alexey Moshnyanskiy

Ukrainian Business Executive

Alexey has two diplomas awarded by Odessa National Marine University in marine engineering and economy. Alexey has been working in the market of inspection services in Ukraine since 1997 and joined ASA Group in 2002. He is an author of two manuals and articles related to cargo survey. He lectures on cargo survey at postgraduate courses at Odessa National Marine University. Alexey has a wide ranging experience in arranging and coordinating inspections of grains, oils, oilseeds, fertilizers and other soft commodities.

Jakovs Salashny

Baltic States Business Executive

Jakovs Salasnijs has been with Alex Stewart International since 1995 having had 20 years’ experience in the industry. Jakov’s has been involved with Alex Stewart Agriculture from its very beginning supervising grain consignments from the Baltic States and Russian Federation. Jakovs is a fully qualified draft surveyor, expert in seed sampling, analysis, pest detection and in other specialist areas of agriculture inspections. He keeps closely in touch with all necessary Agriculture Business Events associated with the Baltic Region, new practices and issues.

Kushal Roy

Indian Business Executive

Kushal Roy is a Class I Marine Engineer with 9 years sea service. Kushal is a fully qualified independent Inspector / Surveyor and has 30 years’ experience, of which the last 25 years has been with Alex Stewart International in the field of independent Inspection, Sampling & Testing of various commodities, particularly grains, oils & oilseeds, fertilizers and other soft commodities for which he has played a key role in setting internationally integrated inspection and testing service in Vizakh, Kandla and Chennai, India.

Gonzalo Paredes

Peruvian Business Executive

Gonzalo is an engineering graduate from the University of Lima who holds a wide range of experience in inspection and analytical processes. He joined Alex Stewart Assayers del Peru in 2002 and specializes in Quality Management. His involvement includes overseeing inspections and sampling operations of Peruvian exports and the Company’s commercial development of its environmental and food laboratories.

Mauricio Robles

Bolivian Business Executive

Mauricio is a fully qualified Environmental Engineer who holds a Masters Degree in Enviromental Management. He is a specialist in Environmental Education which enables the Company to work according to ISO 14001 standards. He began his Career with Alex Stewart Agriculture and Environmental Services Bolivia in 2004. Since then, together with ASA Bolivia, he has formed a dedicated team to provide consulation and project assessment for environment and occupational health projects for the agriculture and environmental industry sectors. He has also set up inspection and quality control services for the exportation of sesame, soya, beans and byproducts from the city of Santa Cruz, Boliva.

Levent Delibas

Turkish Business Executive

Levant Delibas: Graduated in 1984 from Computer Sciences at Bosphorus University (Istanbul). In 1986 Levent started his inspection career as a surveyor of Vitsan Gözetim A.S (Inspectorate). During a working period of 7 successful years he advanced to the position of Assistant General Manager at Vitsan A.S. In 1993 he joined and built Alex Stewart Uluslararası Gözetim A.Ş. Levent’ s experience covers agriculture, liquid cargoes, marine surveys at all major Turkish ports.

Paul Bohn

North American Business Executive

Paul Bohn has over 40 years of experience in surveying and inspecting in the shipping industry. He joined the Alex Stewart Group in 1979. He specializes in all types of grains, as well as metal ores and concentrates. He was at the forefront of the industry when wind power turbines became a reality. Bohn specializes in identification of problems and the solution to make all inspections in USA and Canada run smoothly. For all correspondence for the UAS and Canada please contact the UK office.

Arild Moe

Scandinavian Business Executive

Arild has worked for Alex Stewart Environmental Services since 1994 and has been heavily involved in all of its development and new environmental projects. Our environmental laboratories work to ISO standards and report organic and non-organic parameters to ppm and ppb levels. Types of analysis include waters and bacteria in water, pollutants, heavy metals, anions, seawater; soils and sewage treatment; environmentally sensitive mining projects, geological research and also soil clean-up projects.

Jennifer Thomas

Group Microbiologist

Jennifer Thomas’s career began in 2002 when she graduated from the University of Central Lancashire with a 2:1 degree in microbiology. Jennifer worked in the pharmaceutical industry for 3 years before joining CP Kelco, a fermentation plant who pioneered the production of Xanthan gum. Jennifer joined Alex Stewart Agriculture in 2008 as microbiology manager, to oversee all aspects of the microbiology laboratory and establish a laboratory management system in accordance with the ISO 17025 standard.

Our Business


Meeting your contractual specifications, protecting your business


Delivering the most precise and prompt assaying and analytical services


Providing an extensive range of Accredited Inspection, Analysis and Food Testing Services