McCann Worldgroup has appointed Aaron Phua as executive creative director based in Shanghai, responsible for leading the Coca-Cola account in China and Asia Pacfic. The move sees Phua, who will report to Global Creative Chairman Rob Reilly, return to China. Earlier in his career, Phua spent more than four years at Wieden + Kennedy and BBH Shanghai, where he worked on brands such as Nike, Converse, Heineken, Nokia, Burberry and Coca-Cola. Most recently, he was a creative director at BBDO on the AT&T account in both Atlanta and New York. Prior to BBDO, he worked with CP&B in Miami and Johannes Leonardo in New York as creative director on Under Armour, Bacardi and Coca-Cola.

EVB has hired Scott Potter as VP and director of production based in its Boulder, Colorado office. He will be responsible for shaping EVB's interactive capabilities and will oversee production across all offices. Potter joins EVB from CP&B, where he was VP-group executive producer, working with clients such as American Express, Microsoft, Burger King, Dominos, Old Navy, Fruit of the Loom, Volkswagen, Vail Resorts and B-Cycle.

Dauquen Chabeldin was named chief creative officer of Circus in Mexico City, after a stint at the agency's Buenos Aires office. Chabeldin has previously worked at Grey Group, Ogilvy & Mather, La Comunidad and Leo Burnett. Circus, an independent agency founded in Mexico by Bruno Lambertini and Luis Alonso, has offices in Mexico City, Los Angeles, Buenos Aires and Madrid.

Marcelo Reis, partner and VP-creative at Leo Burnett Tailor Made, Sao Paulo, has been promoted to co-president of the agency along with Marcio Toscani, VP-operations and finance. Reis joined the agency in 2010, after two years as creative director of DM9 DDB, and has helped make Leo Burnett Tailor Made one of Brazil's most awarded agencies. The move comes a month after Leo Burnett Tailor Made's CEO Paulo Giovanni was named chairman of Publicis Worldwide in Brazil.

Irvine, California-based agency Ink has named Dennis Pettigrew as executive creative director. Pettigrew will oversee brand identity, campaign creative, web design and UX, and broadcast spots for the agency's clients, which include Baja Fresh, Edwards Lifesciences and Hoag Health. Previously, Pettigrew was creative director at DraftFCB, where he worked on clients such as Herradura, Kmart, KFC and Taco Bell. Prior to DraftFCB, he was a contract associate creative director at Butler, Shine, Stern & Partners, where he worked on BabyCenter.com.

Omnicom Group's brand design firm Hornall Anderson is opening a New York studio in addition to its offices in the U.K. and Seattle. The studio will be led by Kathy Soranno, who was most recently executive creative director for Wallace Church in New York. Before that, she was creative director at LPK in Cincinnati. Until 2009, Soranno led and managed her own creative shop, Minneapolis-based Bamboo. Hornall Anderson clients include Madison Square Garden, General Electric, Empire State Building and Ocean Spray.