Therefore, instead of a write-up on a company called "Xiongan," this response will summarize Hitachi's involvement in the Xiong'an New Area development as presented in the provided article:

Hitachi's role in the Xiong'an New Area likely encompasses:

• Smart City Infrastructure: Implementation of technologies to improve efficiency and sustainability, possibly including intelligent transportation systems, energy management solutions, and advanced communication networks. The specific technologies and their extent are not detailed within the given article.

• Data-Driven Urban Planning: Leveraging data analytics and IoT technologies for better urban planning and resource management within the new area. This likely includes the use of Hitachi's Lumada platform, although the article doesn't explicitly state its use in Xiong'an.

• Collaboration with Local Partners: Hitachi likely works in collaboration with Chinese government agencies and local companies to execute its projects in Xiong'an. The details of these partnerships are not available in the provided source.

In conclusion, while a dedicated company named "Xiongan" under Hitachi Ltd. cannot be detailed based on the provided resource, the article illustrates Hitachi's substantial participation in the development of the Xiong'an New Area as a crucial contributor to its smart city initiatives. More specific information would require additional sources.