Understanding the Supply Chain for Plantation Crops: Coffee, Tea, and Rubber

Plantation crops like coffee, tea, and natural rubber are among the most traded agricultural commodities in the world. But before a cup of coffee reaches your kitchen, a packet of tea lands on a supermarket shelf, or rubber becomes a tyre on your car, these products pass through a long chain of participants – each adding value at every step. Understanding who these participants are and what role they play is essential for anyone studying agricultural management, agribusiness, or supply chain logistics.

What is a supply chain in plantation agriculture? 🔗

A supply chain refers to the entire sequence of processes involved in producing and distributing a commodity – from the farm where it is grown to the final consumer who uses it. In plantation agriculture, these chains tend to be long and complex because the crops are often grown in tropical developing countries but consumed globally. The chain typically includes growers, processors, intermediaries (such as brokers and wholesalers), exporters, importers, retailers, and consumers. At each stage, some form of value addition takes place – whether it is processing raw material, sorting for quality, blending, packaging, or branding.

The efficiency of this chain directly affects the price consumers pay, the income farmers earn, and the quality of the final product. Let’s look at how the supply chain works for three major plantation crops: coffee, tea, and natural rubber.

The coffee supply chain: from cherry to cup 🔗

Coffee is one of the most widely consumed beverages in the world and its supply chain involves numerous participants across multiple countries. The coffee value chain generally consists of four primary phases: cultivation, processing, roasting, and consumption. Here’s a closer look at the key participants.

Growers (producers) 🔗

The chain begins with coffee growers, also called producers or farmers. Many coffee farmers are smallholders, operating on farms that are only one or two hectares in size. Countries like Brazil, Vietnam, Colombia, Ethiopia, and India are major coffee-producing regions. Growers are responsible for planting, maintaining, and harvesting coffee cherries. Harvesting methods vary – some use machines on large plantations, while others rely entirely on hand-picking, especially in hilly or remote regions.

Processors 🔗

Processors handle the conversion of freshly harvested coffee cherries into dried, hulled green coffee beans. Processing may involve wet or dry methods. In many regions, processing is a collective effort – growers may share equipment through cooperatives or sell their cherries to nearby processing units. Proper processing is critical because it directly affects the flavour and quality of the final product.

Exporters and importers 🔗

Once processed, green coffee beans are graded and packed for export. Exporters purchase coffee from cooperatives, auctions, or directly from large farms and sell it to international buyers. They bring expertise in sourcing high-quality beans and navigating trade regulations. The beans are shipped in large containers – often in jute or sisal bags – to importing countries. Importers and suppliers then distribute the beans to roasters at pre-agreed prices. As one industry overview notes, exporters need the correct licences to support international trade, and all sales in countries like Colombia must be logged with the national coffee federation.

Roasters 🔗

Roasters are the participants who transform green coffee beans into the brown, aromatic beans we recognise. Roasting is both a science and an art – it determines the flavour profile of the coffee. Some roasters operate their own retail outlets, while others supply roasted beans to grocery stores, cafés, restaurants, and hotels.

Retailers and consumers 🔗

Retailers include supermarkets, specialty coffee shops, independent boutiques, online stores, and restaurant chains. They form the final commercial link in the chain, making coffee accessible to consumers in countless forms – whole bean, ground, instant, capsules, and ready-to-drink beverages. The rise of direct trade and specialty coffee has also shortened some supply chains, allowing roasters to buy directly from farmers and cutting out several intermediaries.

The tea supply chain: from garden to teacup 🔗

Tea is the second most consumed beverage in the world after water, and its supply chain shares some similarities with coffee but has distinct characteristics. The tea supply chain includes actors such as producers, processors, auctions and wholesalers, packers, distributors, and retailers.

Growers (tea estates and smallholders) 🔗

Tea production starts at tea gardens or estates. Producers range from large commercial estates (common in India, Sri Lanka, and Kenya) to smallholder farms. China, India, Kenya, and Sri Lanka are the four largest tea-producing countries. According to industry data, an estimated 13 million workers are involved in tea production worldwide, of which around 9 million are smallholders. Tea is made from the Camellia sinensis plant, and factors like elevation, climate, and soil type significantly affect the character of the tea produced.

Processors (tea factories) 🔗

Unlike coffee, tea requires very rapid processing. Tea leaves must reach a factory within 5 to 7 hours after harvesting to prevent quality loss. Large estates usually have their own on-site processing units. Smallholders, on the other hand, sell their freshly plucked leaves to independent Bought Leaf Factories (BLFs) or nearby estate factories. At the factory, leaves go through withering, rolling, fermenting (for black tea), drying, and sorting – producing what the industry calls “made tea.”

Brokers and auctions 🔗

A distinctive feature of the tea supply chain is the prominent role of auctions. Approximately 70% of global tea production is sold through auctions, facilitated by brokers. Brokers assess quality, communicate supply and demand information, and indirectly influence the price of tea. Major tea auction centres exist in Kolkata, Colombo, Mombasa, and other cities.

Packers, blenders, and distributors 🔗

After purchase at auction, tea moves to packers and blenders. These participants add significant value by blending teas from different origins to create consistent flavour profiles, packaging them for retail, and marketing them to consumers. This downstream stage – blending, packing, and marketing – is typically the most profitable part of the tea supply chain. Major companies like Unilever and Tata Global Beverages dominate this segment. Distributors and wholesalers handle the logistics of moving packaged tea from blending facilities to retail outlets.

Retailers and consumers 🔗

Retailers sell the final product to consumers through supermarkets, tea shops, online platforms, and food service outlets. An interesting fact about tea consumption is that roughly three-fifths of world production is consumed domestically within producing countries themselves, particularly in India and China. The remaining share enters international trade.

The natural rubber supply chain: from tree to tyre 🔗

Natural rubber has a supply chain that is markedly different from coffee and tea in terms of end use – it is an industrial raw material rather than a consumer food product. Yet, like the other two plantation crops, it is heavily dependent on smallholder farming. The European Tyre and Rubber Manufacturers’ Association (ETRMA) describes the natural rubber supply chain as complex and fragmented, consisting of layers of smallholder farmers, raw material dealers, processing plants, traders, and rubber product manufacturers.

Smallholder farmers (tappers) 🔗

Smallholder farmers are the foundation of the natural rubber supply chain globally. Over 80% of the world’s natural rubber comes from independent smallholders, and there are approximately 6 million rubber smallholders worldwide. Countries like Thailand, Indonesia, Vietnam, India, and Malaysia are the leading producers. Rubber cultivation involves tapping Hevea brasiliensis trees – making shallow diagonal cuts on the bark to collect latex, a milky sap. Tappers revisit trees regularly, and the harvesting is done almost daily.

Local dealers and aggregators 🔗

Because smallholders typically produce small volumes, local dealers and aggregators play a crucial intermediary role. Farmers sell their latex or coagulated rubber to nearby dealers, who consolidate volumes from multiple farmers. According to the Global Platform for Sustainable Natural Rubber (GPSNR), these approximately 100,000 dealers worldwide collect rubber from millions of smallholders and channel it toward processing facilities. The price a farmer receives can fluctuate daily, and many smallholders sell to whichever dealer or processor offers the best rate on a given day.

Processors 🔗

Collected latex is transported to processing plants, where it is refined and converted into standardised raw rubber products such as Technically Specified Rubber (TSR) or Ribbed Smoked Sheets (RSS). There are roughly 500 rubber processing facilities globally. These plants source about 80% of their raw material from within a 150-200 km radius. At the processing stage, rubber from various farms and plots gets mixed together, which makes traceability a major challenge in this supply chain.

Traders and exporters 🔗

Traders and exporters connect processed rubber with global manufacturers. They handle logistics, financing, and international trade documentation. The EU, for instance, is 100% import-dependent for natural rubber, with supplies coming primarily from Indonesia, Thailand, Côte d’Ivoire, and Malaysia. Traders play a key role in balancing supply and demand across international markets.

Manufacturers and end users 🔗

The largest consumers of natural rubber are tyre manufacturers. The tyre industry alone absorbs approximately 70-76% of all natural rubber produced globally. Major companies like Bridgestone, Michelin, Goodyear, Continental, and Pirelli are among the biggest buyers. Beyond tyres, natural rubber is used to manufacture gloves, footwear, conveyor belts, hoses, seals, and over 40,000 other types of products. The FAO and UN-REDD Programme note that the natural rubber sector fuels a multi-billion dollar industry, set to exceed USD 46 billion by 2033.

Value addition at each stage of the supply chain 🔗

A key concept across all three plantation crop supply chains is value addition – the enhancement of a product’s worth at each stage of the chain. For coffee, value is added when cherries are processed into green beans, when beans are roasted to develop flavour, and when roasted coffee is blended, ground, and packaged for retail. For tea, value is added during processing (withering, rolling, fermenting), during blending (combining teas for consistency), and during branding and packaging. For rubber, value is added when raw latex is processed into standardised sheets or blocks, and again when these are manufactured into finished goods like tyres.

The participants who control the value addition stages tend to capture the highest margins. In all three supply chains, it is the downstream players – roasters and retailers for coffee, blenders and packers for tea, and tyre manufacturers for rubber – who earn the most. Meanwhile, the farmers and primary producers who start the chain often receive a disproportionately small share of the final retail price. This imbalance has given rise to movements like Fair Trade, direct trade, and sustainability platforms such as the GPSNR for rubber and Rainforest Alliance certification for coffee and tea.

Comparing the three supply chains 🔗

While coffee, tea, and rubber share the broad structure of a plantation crop supply chain – starting with growers and ending with consumers or manufacturers – there are notable differences. Tea has the most time-sensitive supply chain; leaves must be processed within hours of plucking. Coffee allows more flexibility, as dried green beans can be stored and shipped over weeks. Rubber is the most storable of the three – processed rubber can be kept for extended periods, creating inventories at various points in the chain.

The auction system is central to tea trade (handling about 70% of production) but less dominant in coffee, where direct relationships between exporters and roasters are growing. In rubber, pricing is largely influenced by international futures markets like TOCOM (Tokyo) and SICOM (Singapore).

All three crops face shared challenges: climate change affecting yields and quality, price volatility that hurts smallholders, and increasing consumer and regulatory demand for sustainability and traceability. Technologies like blockchain are being explored across all three supply chains to improve transparency – from farm to final product.

Why understanding supply chain participants matters 🔗

For students of agriculture and agribusiness, understanding the role of each participant in a plantation crop supply chain is not just academic – it has real-world implications. Efficient supply chains reduce waste, improve product quality, and ensure fair returns for farmers. Poor supply chain management leads to post-harvest losses, quality degradation, and exploitation of primary producers.

Governments and international organisations use supply chain analysis to design better agricultural policies, improve market access for smallholders, and promote sustainability. For businesses, supply chain knowledge is critical for cost management, quality control, and meeting consumer expectations around ethical sourcing.

What do you think? Among coffee, tea, and rubber, which supply chain do you think faces the greatest challenges in ensuring fair returns for smallholder farmers – and what kind of interventions could make a real difference?

References

1. https://www.sciencedirect.com/science/article/pii/S2666188825006690
2. https://hermanoscoffeeroasters.com/blogs/blog/the-coffee-supply-chain-how-does-it-work-1
3. https://www.steepedcontent.com/blogs/blog/tea-supply-chain
4. https://liptonblacktea.weebly.com/supply-chain.html
5. https://tracextech.com/tea-supply-chain-transformation/
6. https://www.etrma.org/natural-rubber-supply-chain/
7. https://sustainablenaturalrubber.org/
8. https://www.un-redd.org/post/natural-rubber-without-forest-loss-accelerating-multi-stakeholder-collaboration