[Inkunming--Sister Cities]  A Worker selects arabica coffee beans for export before they are roasted in Deliserdang, North Sumatra, Indonesia, Aug. 4, 2014. Coffee shipments from Sumatra, Indonesia, the world's third-biggest grower of the robusta variety, dropped 41 percent in June, due to raising concerns about the size of the crop, according to Volcafe Ltd. [Xinhua]

Workers select arabica coffee beans for export before they are roasted in Deliserdang, North Sumatra, Indonesia, Aug. 4, 2014. Coffee shipments from Sumatra, Indonesia, the world's third-biggest grower of the robusta variety, dropped 41 percent in June, due to raising concerns about the size of the crop, according to Volcafe Ltd. [Xinhua]

Workers select arabica coffee beans for export before they are roasted in Deliserdang, North Sumatra, Indonesia, Aug. 4, 2014. Coffee shipments from Sumatra, Indonesia, the world's third-biggest grower of the robusta variety, dropped 41 percent in June, due to raising concerns about the size of the crop, according to Volcafe Ltd. [Xinhua]

Workers select arabica coffee beans for export before they are roasted in Deliserdang, North Sumatra, Indonesia, Aug. 4, 2014. Coffee shipments from Sumatra, Indonesia, the world's third-biggest grower of the robusta variety, dropped 41 percent in June, due to raising concerns about the size of the crop, according to Volcafe Ltd. [Xinhua]