| ICU HOLDINGS LIMITED |
42,144,784 |
£1,580,429 |
| ICU Investment Management Ltd. |
39,533,702 |
£1,482,514 |
| Tengri Partners (Kazakhstan) LLP |
38,273,216 |
£1,435,246 |
| EMOV Limited |
31,975,192 |
£1,199,070 |
| RD Energy LLC |
31,975,192 |
£1,199,070 |
| Dehus Dolmen Nominees Limited |
30,588,054 |
£1,147,052 |
| Amundi SA |
16,489,360 |
£618,351 |
| Fraseli Investments S.à r.l. |
16,111,100 |
£604,166 |
| First Equity Limited |
11,389,000 |
£427,088 |
| Armstrong Investments Limited |
11,389,000 |
£427,088 |
| Trafigura Ventures V B.V. |
8,152,557 |
£305,721 |
| FPP Asset Management |
6,359,517 |
£238,482 |
| Baring Vostok Capital Partners |
2,905,005 |
£108,938 |
| Prudential plc group of companies |
1,784,081 |
£66,903 |
| Claremont Holdings C.V. |
1,529,895 |
£57,371 |
| Aberforth Partners LLP |
938,445 |
£35,192 |
| Harding Loevner, LP |
928,470 |
£34,818 |
| M&G Investment Funds |
921,092 |
£34,541 |
| Aggregate of Standard Life Aberdeen Plc |
879,123 |
£32,967 |
| The Wellcome Trust Limited |
576,598 |
£21,622 |