Azure Dynamics to delist shares on AIM from May 8

* Cites low trading volume, extra listing costs

* Says to maintain listing on Toronto Exchange

* UK shareholders to be migrated to Canadian register

April 6 (Reuters) - Azure Dynamics Corp ADC.L (AZD.TO), a Canada-based maker of hybrid electric and electric powertrains, said on Monday it would delist its shares on AIM, London Stock Exchange's junior market, effective May 8.

The company cited low volume of trade and the additional costs incurred to maintain a second listing.

However, it would maintain its listing on the Toronto Stock Exchange.

Azure joins a group of small companies cancelling their public float in the UK amid market turmoil. About 40 companies have so far delisted from AIM.

Given the company's North America-focused shareholder base and operations, the low number of shareholders in the UK, low trading volume on AIM and the extra costs, "it is in the best interests of the company to seek a cancellation of its shares from trading on AIM," it said in a statement.

The Toronto-listed Azure said its certified shareholders in the UK would be migrated to its Canadian register automatically and would be notified (Reporting by Srikanth Srinivasa in Bangalore; Editing by Gopakumar Warrier)