Farmers are felling coffee trees traditionally grown in this cool hilly region to plant spiky durians, pungent fruits that have become wildly popular in China. They are reaping the windfall to buy new irrigation systems, pay off loans and build shiny marble facades to their homes.

“We locals aren’t just doing well, we can even be considered rich,” said Pham Van Trung, 54, as he ate a late lunch of pork and rice wine. Trung made $81,000 this year selling durian, and said the region was swarming with Chinese buyers.

China’s appetite for foreign produce has grown in recent decades along with the wealth of its consumers. The amount of food the world’s second most populous nation imports has risen to over $200 billion a year—more than any other country—from about $15 billion two decades ago, according to the World Trade Organization. Avocado farmers in Kenya, shrimp cultivators in India, soy producers in Russia and banana growers in Cambodia are all cashing in.

While economic growth in China has slowed recently and its population is shrinking, demand for nutrient-rich foods such as beef and tropical fruit has remained high.

Last year, the Chinese noshed through more than 800,000 metric tons of imported durian and nearly six million metric tons of imported meat—both world-leading totals. It bought 90 million metric tons of soybeans from overseas last year, accounting for roughly 60% of global trade, for use in making tofu and to feed the country’s hundreds of millions of pigs.

Feeding China’s massive middle class presents a historic opportunity for countries seeking to boost the incomes of people in poor, rural areas. But it also poses a quandary: how to tap in to its huge market without becoming dependent on a trade partner that can be fickle.

In recent years, China has restricted imports of Norwegian salmon, Taiwanese pineapples, Philippines bananas and Australian lobsters. It usually cites contamination, pests or issues with quality—but Beijing’s curbs have also often coincided with political disputes.

China slapped hefty antidumping duties on Australian wine exports in 2020 after Australia called for an independent probe into the origins of Covid-19. In 2012, China halted purchases from banana growers in the Philippines, saying mealybugs had been discovered in shipments, after a flare-up between the countries in the South China Sea.

“With the size of the Chinese economy, it can always use trade to punish an exporter,” said Yun Sun, director of the China program at the Stimson Center, a think tank in Washington, D.C. Selling to China is “an opportunity, and it is a risk,” she said.

The risk is higher because when the chance to export to China’s massive market opens up, often entire agricultural belts go all in. This can lead to what Sun calls “singularification,” or the concentration of a local economy around one product, making it vulnerable to disruption.

That is what appears to be happening in Vietnam’s central highlands. The region is famed for its Robusta coffee, which is sold around the world. But last year, Beijing opened the gates to large-scale imports of Vietnamese durian—and farmers here began uprooting their coffee crops. Traders flocked to snap up the produce, causing local prices to more than double this year.

Be Duc Huynh, a 26-year-old farmer who got rid of his entire coffee crop, said he makes about five times as much from a hectare of durian as he earned from coffee. He harvested four tons of durian this year, up from one ton last year—all of it destined for China.

China buys around 90% of durian exports from Vietnam, which also sells much of its dragon fruit, bananas, mangoes and jackfruit to its giant neighbor. In recent months around 60% of Vietnam’s fruit and vegetable exports have gone to China, up from one-third a decade ago, according to official figures compiled by data provider CEIC.

During the autumn harvest time, the village air carried the sharp smell of the fruit. Families stacked mounds of durian in front of their homes to entice traders, who thwacked the durian shells with knife handles to test for quality. Hard means it is too young; soft means it is ripe and can sell for a higher price.

On a recent afternoon, durian trader Nguyen Thai Huyen dug into the flesh with her painted-pink fingernails, tasting bits of durian to determine their ripeness. Huyen posts snappy videos on TikTok of her visits to plantations and the mountains of durian she has on offer.

“A few years ago people considered durian a crop to reduce poverty,” she said. “Now it is the million-dollar crop.”

She has tried selling to Japan, but said buyers there only take small amounts. She isn’t especially worried about being too reliant on China, though. She says durian’s popularity has room to grow in the country, where many are still unfamiliar with the fruit.

Vietnam’s government is less certain. Earlier this year the agriculture ministry issued a warning about what state media called reckless durian cultivation, saying many farmers were abandoning traditional crops such as coffee and rice and planting durian in areas unsuited to it. Agriculture experts cited in state media have encouraged farmers to develop alternative markets to China and try to sell more of their produce locally.

Traders say that is easier said than done. The fruit has few takers outside of the region, and recent high prices put durian out of reach of many local Vietnamese.

Still, farmers say they want to be careful. In September, some fruit exports including durian were halted after Beijing complained about mealybugs and other pests. It reminded farmers of a major disruption in January 2022 when truckloads of Vietnamese produce rotted after China sealed off its southern border to contain the spread of Covid-19.

H’Meng, a farmer who goes by one name, has planted hundreds of durian trees in recent years. Now, she said, she is planning to grow more coffee. The prices are more stable, she said, because the market for coffee isn’t focused on one nation.

“I’m worried about becoming too dependent on China,” she said.

Write to Jon Emont at [email protected]