The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Dutch Water Sector's[2] report on Maasvlakte 2 states the extension was officially opened for shipping on 22 May 2013.
News report of the 22 May 2013 opening for shipping.[1]
Corroborates the extension's 2013 opening and 2015 container terminal start-up.[1]
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