The Cassava Multiplier — Thai Data Guy

Thailand grows around 30 million tonnes of cassava a year. Most of it leaves the country as dried chips at $0.12 a kilo. The same material, processed through four distinct industrial steps, is worth $3.20 a kilo. That 26x multiplier is the story — and the race to capture it is well underway.

Thailand is the world's third-largest cassava producer and the largest exporter of cassava products. That sounds impressive until you look at what's actually being exported: roughly 60% of output still leaves as low-processed chips and pellets, destined for animal feed and Chinese ethanol plants. The value chain exists. The question is who controls which node, who's moving up it, and where the margin remains uncaptured.

Node 1 — Farm ($0.12/kg)

About 500,000 smallholder households grow cassava across Thailand's Northeast — Nakhon Ratchasima, Chaiyaphum, and Kamphaeng Phet are the production heartland. Yield per rai has improved modestly with better varieties, but these farmers are price takers in a commodity market. No brand equity, no direct processor relationships in most cases. The farm node is structurally unlikely to change — the processing opportunity is entirely downstream.

Node 2 — Native Starch ($0.80/kg)

This is the first industrial step and the most developed layer of the Thai cassava chain. Around 60 commercial starch mills operate nationally, most clustered in the Northeast to minimize transport costs. Thai Wah (SET: TWC) is the most visible listed player, with significant native starch capacity and a growing modified starch position. This node exists, functions, and is competitive. But the margin here is thin — starch is still a commodity, and Vietnam's expanding cassava sector is adding supply-side pressure on pricing. Being well-positioned at this node matters less than it used to.

Node 3 — Modified Starch ($1.80/kg)

Here's where it gets interesting. Modified starch — chemically or physically treated to achieve specific functional properties like thickening, binding, or film-forming — is used across food processing, paper, textiles, and adhesives. The technical barrier is meaningfully higher than native starch, and so is the margin. Thai Wah has been building this position; global ingredient multinationals including Ingredion (US) and Roquette (France) operate in Thailand partly to access the cassava feedstock at scale.

But relative to the scale of Thailand's raw cassava position, the modified starch industry remains undersized. More processing capacity here would directly capture margin that currently leaks to importing countries who buy Thai native starch and modify it themselves. This is one of the cleaner import-substitution plays in the agricultural value chain — the feedstock advantage is real, and the technical barriers are manageable for well-capitalized operators.

Node 4 — Biochemicals ($3.20/kg)

This is the frontier node, and the one Thailand's BCG Economy policy is explicitly designed to develop. Cassava at this stage becomes glucose syrup, bioethanol, lactic acid, citric acid, sorbitol, and — most ambitiously — bioplastics. PTT Group is the most prominent Thai entity pushing into this space: its JV with Cargill, NatureWorks, produces PLA (polylactic acid) bioplastic in Thailand, one of the few genuinely world-scale bio-based polymer operations in Southeast Asia. IRPC (also PTT Group) has additional bio-based chemical ambitions. The government has earmarked specific EEC industrial estates for biochemical cluster development.

The challenge at this node isn't intent — it's capital intensity and technology depth. Biochemical conversion requires sustained R&D investment, specialized process engineering, and often international technology licensing. The players who get there will be conglomerates and JVs, not SMEs. That's not a criticism of the opportunity; it's just an accurate description of who can execute it.

Who's Winning the Processing Race

The honest scorecard: Thai Wah is the dominant operator at the starch layer. PTT/NatureWorks holds the biochemical frontier. A handful of multinationals — Ingredion, Roquette, and others — are quietly extracting the mid-chain modified starch margin. The gap is most pronounced at modified starch and specialty biochemicals, both undercapitalized relative to the feedstock availability that exists upstream.

Chinese players are worth watching closely. China is already Thailand's largest cassava chip buyer and is beginning to invest directly in Thai starch processing — partly to secure supply chain position, partly because BOI incentives make it attractive. This brings capital and technology transfer, but it also raises a legitimate question about who ultimately books the margin at the processing layer.

Where the White Space Remains

Three areas stand out. First, the modified starch layer needs more Thai-owned industrial capacity — the feedstock advantage is significant but the processing infrastructure to exploit it fully isn't there. Second, pharmaceutical-grade glucose and specialty fermentation substrates are niche but high-margin derivatives that Thai processors haven't systematically pursued. The technical pathway exists; the commercial prioritization hasn't happened yet. Third, the farm-to-factory aggregation layer remains fragmented — better logistics, contract farming structures, and quality grading systems would simultaneously raise farmer prices and improve factory utilization rates.