The Dutch government persisted in its attempt to smuggle the seeds, and by the 1930s Dutch plantations in Java were producing 22 million pounds of cinchona bark, or 97% of the world's quinine production.
The Dutch government persisted in its attempts to smuggle the seeds, and in the late 19th century the Dutch managed to grow the plants in their Indonesian plantations. By the 1930s Dutch plantations in Java were producing 22 million pounds of cinchona bark, or 97% of the world's quinine production.