Citigroup corporate and investment bank has rolled out a series of changes in its global transaction services (GTS) business, making two key appoints in the region.

Both Nigel Dobson and Sridhar Kanthadai will answer to new titles in the firmÆs GTS structure and will report to Anthony Nappi, CEO and regional head of GTS in Asia-Pacific.

Dobson will relocate to Hong Kong from Singapore to take on the role of regional head of cash management for Asia-Pacific in GTS. In this position, he will assume responsibility for leading CitigroupÆs cash and treasury management teams across 17 regional markets. Dobson takes on the position after Nappi was promoted to his current role earlier in the year.

DobsonÆs move is internal and will require him to leave his present position as head of GTS for Singapore and Brunei. Prior to this Citigroup role, he also held other related posts at the bank including head of GTS for Australia and New Zealand. Dobson first joined Citi in 1990 in New Zealand.

Kanthadai will become chief operating officer for GTS in Asia-Pacific. In this position, heÆll be responsible for identifying strategic partnerships and alliances, strategic planning, product risk and control. His new post will also include a focus on business planning and analysis for GTS in the region.

Also shifting internally, Kanthadai was previously its regional head of receivables, liquidity management and investmentÆs for CitiÆs cash management business. Starting his career at the firmÆs India operations, Kanthadai has held a variety of senior roles in technology, project management, product development and strategy planning and business management.

Citigroup is currently searching for candidates to take on the roles previously inhabited by Dobson and Kanthadai.