Grayling has been appointed by the Changi Airport Group to manage its social media network encompassing Facebook, Twitter, YouTube and Flickr. The contract is for one year.

OMD Indonesia has won the McDonald’s media account after a pitch involving Dentsu, Activate and Maxus. OMD holds the account in 69 other markets around the world. The appointment is effective from May 2011.

Grey India has been appointed, after a pitch, to become National Geographic Network’s creative agency

Ogilvy & Mather Advertising in Hong Kong has gained PrimeCredit, a well-known financial institution. The agency starts work on a major campaign in 2011. This will include, TV, print, outdoor and below the line.

OMD China has retained the Amway media account for the sixth year in a row. There were five agencies in the pitch held in January for the media business. The account is estimated to be worth RMB 1.5 billion.

Euro RSCG Singapore has been named agency of record for the Bosch brand. This is one of the brands of BSH Home Appliances Pte Ltd. The agency won the business, which is a regional account, after a four-way pitch. MPG has been given the media business.

Sedgwick Richardson has been appointed the branding agency for Singapore’s new SportsHub. This is a new sports and entertainment complex under construction now in the Republic. Sedgwick Richardson will develop the identity and primary marketing and communications channels.

Isobar Hong Kong has been appointed by City of Dreams, Macau’s newest leisure and entertainment resort, to handle all the digital activities for “The House of Dancing Water”, the world’s largest water-based extravaganza. Isobar will create and manage social marketing, online campaigns and website development. Isobar was originally wwwins Consulting Hong Kong.

OMD in Thailand has been appointed media agency of record for Super Coffeemix after a pitch against the incumbent ZenithOptimedia.