Chemical & Fertiliser Expert Witness Services

We bring over 50 years of experience as independent consultants across the world to the chemicals and fertilisers industry. We take a scientific, unbiased approach in all our recommendations, acting purely in our clients’ best interests.

Expert Consultants in Chemical & Fertilisers Across 90 Countries

We are confident that our fertiliser expertise cannot be matched. Our team are independent and continually involved in the engineering and control of major ammonia-urea and fertiliser projects, and we have extensive litigation experience at the High Court and International Court of Arbitration.

Our Clients

Our Accreditations

Our Fertiliser & Ammonia

  • Ammonia Production from:
  • Solid fuels
  • Fuel oils
  • Naphtha
  • Natural gas
  • Pesticides
  • Herbicides
  • Insecticides
  • Phosphoric acid
  • Boric acid
  • Sulphuric acid
  • Hydrochloric acid
  • Fertilisers:
  • Nitric acid
  • Nitrogenous fertilisers
  • NPK fertilisers
  • Salt-based Industries:
  • Caustic soda
  • Chlorine
  • Soda ash

Our Expert Witness Services Includes

Expert advice and independent expert opinion

Site and equipment surveys

Process design reviews

Review of construction records

Examing compliance issues

Investigation of process and mechanical design defects, disruptions

Years Of Experience In Fertiliser Activities

Our chemical division and partner specialists are continually involved in fertiliser activities, with extensive experience in the review, design, engineering and control of major ammonia and urea projects.

Major Ammonia-Urea

  • Major ammonia-urea projects
  • Agronomic fertilizer development requirements
  • Refrigerated ammonia storage tanks
  • Export jetty of ammonia and urea
  • Piping of urea and ammonia


  • Ammonia conveyors and ship-loaders
  • Hydraulically operated ammonia loading arms
  • Urea storage buildings
  • Reclaim conveyors
  • Bagging plants

Industry Knowledge &

  • Product licensors
  • Contractors
  • Equipment suppliers

Chemical Clients Worldwide

Fertiliser and urea project expertise.

Worldwide Fertilizer Experience

Lithuania (Achema)

  • Review international forms of model contract and advise programme schedules and cost
    estimates for ACHEMA fertiliser plant Lithuania - $100M extension - Client The European
    Bank for Reconstruction and Development (EBRD). Participated in negotiations with prospective contractors with ACHEMA - Client The European Bank for Reconstruction and Development (EBRD).

Bahrain (GPIC)

  • Manderstam carried out feasibility studies into port access and loading jetty layouts for urea
    storage, transfer and ship loading on behalf of GPIC. Subsequently, Manderstam carried out on behalf of GPIC the conceptual design, bid documentation and project management support services for the new Urea plant constructed by a
    Japanese contractor.

Invergordon Chemical Enterprises (Inverness, Scotland)

  • The project consisted of a 1.000 tonnes per day ammonia unit and 1,700 tonnes per day urea
    together with full off-sites and facilities. A thorough analysis of the various processing routes offered by four major contractors was required. Selection of the contractor was made after studying the process routes, the economics of each route, capital investment and terms and operating conditions of the contract.


  • The design engineering and preparation of specifications for the production of ammonium
    sulphate fertilizers in Tenerife.

Fertiliser Usage & Yield Analysis

Optimal application of fertilizers to enhance agricultural production

Choosing the right fertiliser to achieve and maintain optimum yields requires detailed knowledge of the soil characteristics, climate, the type of crop and its nutrient requirement.

Our specialist staff is familiar with typical plantation crops in environments across the world – and the problems associated with fertilizers, herbicides and pesticides – and understand how to achieve maximum economic return from them.

We can organise, supervise and interpret field work from soil analysis to crop response through our associates at Rothampstead Experimental Station, Dr W Flaig at the German Federal Agricultural Research Centre, and various university research departments in the UK.

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"Dear clients and colleagues,

Like all of you, we have been closely monitoring the COVID-19 pandemic since its inception in order to respond as necessary. Our priority is the health and wellbeing of all whom we work with and our wider responsibility of serving our clients. To that end we have implemented a robust, well tested plan which enables us to operate at usual capacity and ensure a high quality service: business as usual in other words.

We wish all our clients good health in these challenging times".

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