Ecuador and India, the world's largest shrimp producers, have seen stable ex-farm prices for head-on, shell-on shrimp in week 20, despite an unexpected rise in production in April. Prices in China and Indonesia have been increasing, with specific data missing in China. In Indonesia, the supply of large-sized shrimp is expected to increase due to an early harvest of smaller shrimps. Meanwhile, Vietnam has seen a decrease in the prices of smaller white shrimp sizes, contrasting with the increase in China and Indonesia. Thailand's white shrimp prices have also decreased in the previous week.