Home2006 Treaties and Agreements ...Multilateral (06-401) – Agreement on Duty-Free Treatment of Multi-Chip Integrated Circuits hide Multilateral (06-401) – Agreement on Duty-Free Treatment of Multi-Chip Integrated Circuits TIAS Office of Treaty Affairs April 1, 2006 Trade and Investment: Multi-Chip Integrated Circuits Declaration of agreement signed at Seoul September 15, 2005; agreement done at Brussels December 21, 2005; entered into force April 1, 2006. Download attachment [421 KB] Tags Multilateral Trade and Investment Treaties