Nice article..little dated but everything is relevant. Here are some recent export figures:
August 9th records:
16-031-EC03-000095-G: 54 T to South Korea for $305,034.00 @ $5,648.78/T
16-031-EC03-000096-H: 100 T to Belgium for $1,153,600.00 @ $11,536.00/T
August 11, 2016:
16-031-EC03-000100-Z: 36 T to Japan for $475,476.00 @ $13,207.67/T
16-031-EC03-000101-R: 40 T to Japan for $531,940.00 @ $13,298.50/T
August 17, 2016:
16-031-EC03-000102-S: 80 T to Japan for $801,270.00 @ $10,015.
16-031-EC03-000103-T: 54 T to S.Korea for $762,954.00 @ $14,128.78/T
16-031-EC03-000104-U: 80 T to Japan for $799,430.00 @ $9,992.86/T
16-031-EC03-000105-V: 80 T to Japan for $800,870.00 @ $10,010.88/T
16-031-EC03-005118-E: 2 T to S. Korea for $28,972.00@ $14,486.00/T