Deutsche Börse, the German exchange group bidding for the LSE, has made some management changes to its derivatives trading and clearing business, Eurex.

Thomas Book has been appointed chief executive of Eurex Frankfurt and Eurex Zürich immediately while Erik Müller will take charge of Eurex Clearing from July this year.

Both businesses are part of the newly created 'clients, products and core markets' division led by Jeffrey Tessler, who is also the chief executive of Deutsche Börse's Clearstream.

The group also announced that Andreas Preuss, deputy chief exec of Deutsche Börse, will lead a newly formed division named 'IT & operations, data & new asset classes'. 

That unit includes  Deutsche Börse's market data and services business, which has bundled together four major service lines - regulatory, data, index and infrastructure.

A Deutsche Börse spokesman told Global Investor/ISF that the changes are unrelated to the group's planned takeover of the London Stock Exchange.

Both parties announced they were in talks over a merger last month.

Instead, the appointments and new structure follow a recent re-organisation of the board and are designed to improve customer focus.