Inside one of Thailand's biggest corn manufacturing facilities

On a recent visit to Sunsweet Co., Ltd.’s modern corn processing plant in Chiang Mai, northern Thailand, Vietnam Economic News reporters gained rare behind-the-scenes access to the production line where millions of ears of sweet corn are processed annually for domestic and international markets.

As part of a guided tour, Vietnam Economic News reporters observed the entire journey of sweet corn—from the arrival of truckloads of produce at dawn to the final packaging of premium frozen and canned corn products. Through a combination of manual care and state-of-the-art technology, Sunsweet ensures that each kernel meets strict quality and safety standards before it reaches consumers across Asia, Europe, and beyond.

A heavy-duty truck arrives at Sunsweet’s Chiang Mai facility, carrying morning’s harvest of sweet corn for processing.

Workers stand beside the unloading area, hand-selecting and discarding any damaged or spoiled corn before it enters the plant.

Intact ears, still in husks, are loaded onto the conveyor belt and transported inside for cleaning and shelling.

On the indoor processing line, employees conduct additional manual checks, ensuring each ear meets quality standards.

Machines efficiently detach kernels from cobs, preparing them for further processing or packaging.

The freshly shelled kernels are weighed and packed into bags under the “KC” brand — ready for retail.

At a dedicated station, corn destined for the frozen-food section is flash-frozen and sealed for export.

Lab technicians conduct microbiological and chemical analysis, confirming food safety and compliance before distribution.

A display highlights a range of the company’s sweet corn offerings—from canned to frozen under the “KC by Sunsweet brand.

A separate product panel introduces Sunsweet’s extended portfolio, including canned sweet potatoes, grilled bananas, and more
SUNSWEET Public Company Limited is a manufacturer and distributor of processed agricultural products to serve both export and domestic market under its brand KC and customer’s brand. The company also engages in sourcing and trading food and agricultural products.
Phú Quý
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