http://www.reuters.com/article/us-saudi-asia-china-idUSKBN16N0G9

"..A statement later posted on Saudi state news agency SPA said the documents included an MoU for the kingdom to participate in China's Chang E-4 moon mission and a partnership agreement for manufacturing drones..."

http://www.janes.com/article/68975/saudi-arabia-to-build-chinese-uavs