My take on the revenue figures are:
H1 $11.491M (half-yearly)
Q3 $12.800M (para5, p2)
Q4 1,688 x $6,780 = $11.445M (para5, p4 & para1, p5)
Annual revenue = $35.736M
H1 2,125T (p5, H1)
H2 3,500T (2nd-last para, p4, Q4)
Annual tonnage 5,625T
Annual average $/t = $6,3530.