A woman of Thai ethnic tribe harvests coffee at a farm in Son La, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





A trader walks near a pile of coffee cherries at a coffee trading agent in Son La, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Coffee beans are dried on the ground of a family in Son La, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





A woman of Thai ethnic tribe harvests coffee at a farm in Son La, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





A woman of Thai ethnic tribe harvests coffee at a farm in Son La, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





A farmer produces beeswax at a farm in Moc Chau district, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Honey bee hives are seen at a farm in Moc Chau district, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Honey bee hives are seen at a farm in Moc Chau district, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





A farmer produces beeswax at a farm in Moc Chau district, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Men rake through corns at a factory of a buying agent in Son La province, northwest of Hanoi, Vietnam October 13, 2015. The communist nation is seen as one of the biggest winners from the Trans-Pacific Partnership, with a surge of investment expected into its $186-billion economy, especially in low-cost manufacturing. Vietnam has kept secret until now the details of what it negotiated. (Photo by Reuters/Kham)





Pollens are seen at a honey bee farm in Moc Chau district, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Men rake through corns at a factory of a buying agent in Son La province, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Men sit on a pile of corn at a factory of a buying agent in Son La province, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





Men rake through corns at a factory of a buying agent in Son La province, northwest of Hanoi, Vietnam October 13,2 015. (Photo by Reuters/Kham)





Men pour corn kernels onto a truck at a factory of a buying agent in Son La province, northwest of Hanoi, Vietnam October 13, 2015. (Photo by Reuters/Kham)





An employee checks a customer's bill inside a Circle-K mart in Hanoi, Vietnam, October 12, 2015. Vietnam is seeing a mini-boom in mini-marts, with local and foreign players beefing up their presence as shoppers eye easy buys while a robust economy increases spending power. (Photo by Reuters/Kham)





A student looks at products inside a Circle-K mart in Hanoi, Vietnam, October 12, 2015. (Photo by Reuters/Kham)





An accessories vendor walks past a Vinmart shop in Hanoi, Vietnam, October 12, 2015. (Photo by Reuters/Kham)





A woman walks past a Vinmart shop in Hanoi, Vietnam, October 12, 2015. (Photo by Reuters/Kham)





A motorcyclist rides past a Vinmart shop in Hanoi, Vietnam, October 12, 2015. (Photo by Reuters/Kham)





A farmer works on a tea farm which produces black tea for export in Moc Chau, northwest of Hanoi, Vietnam October 14, 2015. The communist nation is seen as one of the biggest winners from the Trans-Pacific Partnership, with a surge of investment expected into its $186-billion economy, especially in low-cost manufacturing. Vietnam has kept secret until now the details of what it negotiated. (Photo by Reuters/Kham)





A farmer works on a tea farm which produces black tea for export in Moc Chau, northwest of Hanoi, Vietnam October 14, 2015. (Photo by Reuters/Kham)





Farmers work on a tea farm which produces black tea for export in Moc Chau, northwest of Hanoi, Vietnam October 14, 2015. (Photo by Reuters/Kham)





The winning cow is pictured after it took the crown in the Miss Milk Cow beauty contest in Moc Chau plateau, northwest of Hanoi October 15, 2015. The beauty contest selects cows with a solid torso, high legs and which provides the most milk. This year, 126 cows have been chosen for the contest among the 18,000 cows in Moc Chau. Miss Milk Cow beauty contest is organised at Moc Chau plateau for more than a decade to promote local dairy products as the diet of Vietnamese people rapidly changed with higher income. The winner this year is a five-year-old cow that weighs 710 kg and provides around 59.6 kg milk each day, nearly triple the average amount of milk produced by Vietnam's cows. (Photo by Reuters/Kham)





A man steers with his legs while riding a motorcycle on a road in Vietnam's northern Hoa Binh province, outside Hanoi, October 15, 2015. (Photo by Reuters/Kham)





A man steers with his legs while riding a motorcycle on a road in Vietnam's northern Hoa Binh province, outside Hanoi, October 15, 2015. (Photo by Reuters/Kham)





A fruit vendor walks past branches of Vietbank and VietinBank in Hanoi, Vietnam October 22, 2015. Picture taken October 22, 2015. (Photo by Reuters/Kham)





A woman harvests coffee at a farm in Son La, northwest of Hanoi, Vietnam in this October 13, 2015 file photo. (Photo by Reuters/Kham)