On 16 July, six XR activists were convicted of highway obstruction at St Albans magistrates court.
They had been part of the 50-strong 14-hour XR blockade of the Newsprinters printworks in Broxbourne, Hertfordshire, last September.
The plant prints the Sun, the Times and other right-wing papers.
Five defendants were given a 12-month conditional discharge and ordered to pay £150 court costs plus a £22 victim surcharge.
The sixth defendant received a £150 fine as well as well as £150 court costs and £34 victim surcharge.