Business globalization causes all project managers, sooner or later, to face the challenge of understanding cultural differences. Identifying the risks associated with these differences has become an essential task today when discussing international projects. This paper shows how to improve the management of projects carried out in China by Spanish organizations, identifying risks related to differences between societies. To determine this set of risks, the cultural dimensions of Hofstede and Meyer were analyzed for the case of China and Spain, as well as the most critical values of the World Value Survey between both cultures. From there, and thanks to work done with a focus group formed of 29 Spanish project managers who are experienced in working in projects developed in China, risks were identified and classified into categories considering cultural dimensions. The results obtained show a record of risks of great interest for organizations working in international contexts, mainly in China. They reveal, in addition, the importance of considering this type of risks related to cultural differences, which have rarely been treated before.