From 1983 to 1992, a team of HVA experts has provided technical assistance to AGROINRA in Nicaragua for the establishment of two oil palm cooperatives at "Cukra Hill" and "El Castillo", comprising 2,500 ha oil palm each.

Since 1986 HVA experts have been engaged in an oil palm research project at the DENPASA estate near Belém in Brazil to trace the agent of the spear-rot disease and to try to control this disease, endemic in Central and South America. Identical research was carried out for a regional oil palm project in Ecuador for account of the Ministry of Agriculture of Ecuador.

From 1969 to 1985, HVA was co-owner and managing agent of the Victoria oil palm estate (1,650 ha) in Surinam. The company was also entrusted with the implementation and management of the Phedra Oil Palm Project (875 ha) and a smallholders scheme (200 ha), located adjacent to the Victoria estate. The outgrowers project not only covered land clearing and plantation, but also included the full organizational set‑up, including infrastructure and credit schemes.

From 1973 to 1984, HVA was co-owner and managing agent of the DENPASA (Dendê do Pará SA) oil palm plantation in Benevidos, Pará State, Brazil. The project consisted of implementation and management of an oil palm complex with an own area of 5,100 ha and an outgrowers' area of approximately 2,500 ha. Actual production in this stage amounted to 20,000 tonnes of palm‑oil, processed by two factories. During the entire period, three HVA-experts were permanently stationed at the estate.

In 1974, the Government of Surinam called on HVA to conduct a feasibility study for an oil palm project in East Surinam resulting in a recommendation for a 30 tonnes FFB/hr milling plant with a 5,000 ha plantation. Project implementation started in 1979 and HVA was invited to implement and manage this project and provide the necessary agricultural and technical services.

In 1992 HVA-International conducted a study for the improvement of the operations efficiency with respect to an oil seed plant in south-east Bolivia.

From 1990 to 1993, HVA undertook the design, engineering and supervision on construction of 10 mini palmoil mills (so-called village mills) in the member states of the Mano River Union. Prerequisites were the use of locally available material and construction facilities. A base line survey had been conducted to define the needs and capacities of such a mill. Training programmes for the local population, and extension services constituted essential elements. The project included furthermore an institutional component. During the two-year project implementation period, four experts of HVA and its local partner were permanently stationed abroad.

From 1983 to 1992 a team of HVA experts has been providing technical assistance to AGROINRA in Nicaragua for the construction of palm‑oil extraction plants at the palm‑oil cooperatives of "Cukra Hill" and "El Castillo".

From 1983 to 1987, the HVA provided technical assistance services to the 6,000 ha Palmas del Espino oil palm estate at Mehiza in Peru. The activities included preparation of tender specifications, evaluation of bids and supervision during construction on a pal moil mill with a capacity of 20 tonnes FFB/hr in the first phase, and a final capacity of 40 tonnes/hr. Until 1989 technical assistance has been provided to the estate.

In 1975, HVA started a 10-year involvement in Bajo Aguán Palm Oil Mills in Honduras, financed by the Government of The Netherlands. The assignment started with a feasibility study which resulted in the construction of two milling plants of 15 tonnes FFB/hr each and another of 20 tonnes FFB/hr. HVA services were related to: the preparation of tender documents, tender evaluation and assistance in contract negotiations. Construction and commissioning were also supervised by HVA.

In 1970, HVA embarked on the design of a palmoil mill, for the Victoria estate in Surinam, then under development. The palmoil mill came into operation in 1974 and was gradually extended in line with the requirements of the estate.

In 1986, a study was carried out for AGROINRA to investigate the situation of the refining capacity of edible oils in Nicaragua. The study resulted in a plan for the establishment of a fractionation plant for palm oil and an extension of one of the existing refineries.

In 1979, HVA prepared a study on palm oil refining, fractionation and marketing of palm olein for cooking oil for the Government of Indonesia. This study resulted in the start of palm‑oil fractionation and the establishment of the first fractionation plant in Sumatra. For the marketing of the stearin part of the fractionated oil a study was carried out in the Middle and Far East to investigate the possibilities of selling stearin as a raw material for ghee production.

In 1975 the Government of Surinam invited HVA to carry out a study on the processing of crude palm oil into cooking oil, shortening, margarine, and soap. In cooperation with EBE in West Germany, the engineering department of HVA developed a continuous physical refinery with a capacity of 1 t/hr. The refined oil was fractionated with a dry system. The automation of the processing units was adapted to the level of competence of the operators. The oil factory included a unit for the blowing of PE bottles. The refinery started in 1977 and was extended in 1985 with a double fractionation unit, which increased the olein fraction to 80% of the palm oil input. The hard stearin was used as a fuel for the steam boiler.