Nowadays, global production networks (GPN) and global value chains (GVC) play an important role in the world economy intensifying the trade and production networks and resulting in products having value-added in different countries. The analysis of how many intermediate products a country imports in order to produce a product and of how many products a country exports to another country in order to produce new products draws the attention to value-added trade. In the present study, we compare the Hungarian and Polish value-added trade of chemicals and chemical products. We use the OECD-WTO data of value-added trade, which is based on an input-output table. By calculating numerous indices, we reveal that the domestic value-added of chemicals and chemical products in the two countries was relatively low and should be increased by adequate economic policy.