Qatar-Glencore purchase of Rosneft was done through Singapore
1MDB scandal is based in Singapore
https://www.reuters.com/article/us-rosneft-holding-qia/qatar-glencore-venture-values-its-rosneft-stake-at-7-4-billion-euros-idUSKBN1L01WY
https://sbr.com.sg/source/zuu-online/heres-how-singapore-banks-are-involved-in-1mdb-scandal