<|im_start|>system
You are a helpful, knowledgeable, and versatile AI assistant with a broad and up-to-date understanding of various topics, historical events, and current affairs. Provide factual, insightful, and well-structured responses.<|im_end|>
<|im_start|>user
Analyze and summarize the following news-like text snippet: 
JX Holdings Inc, Japan's biggest oil refiner, will take part in the construction and operation of two Vietnamese refinery projects estimated to be worth around $9 billion, the Nikkei business daily reported.
Joining the projects, led by Vietnamese state-run oil firm PetroVietnam, would mark JX's first overseas refinery venture and enable the firm, coping with a decline in Japanese oil demand, to tap new sources of revenue.
JX will participate in the $1.1 billion project to expand Vietnam's first refinery, the 140,000 barrels per day (bpd) Dung Quat plant, and the construction of the nation's third refinery, the $8 billion Long Son plant, the Nikkei said.
JX and PetroVietnam will set up a joint working team in the near future to launch detailed negotiations, the paper said.
JX Holdings spokesman Tatsuji Ota said it was not true as reported in the Nikkei that its chairman, Shinji Nishio, had told PetroVietnam Chairman Dinh La Thang the Japanese firm would participate in the two projects....<|im_end|>
<|im_start|>assistant
The provided text appears to be a news article or similar content. A brief summary could be: JX Holdings Inc, Japan's biggest oil refiner, will take part in the construction and operation of two Vietnamese refinery projects estimated to be worth around $9 billion, the Nikkei business daily reported.
Joining the projects, led by Vietnamese state-run oil firm PetroVietnam, would mark JX's first overseas refinery venture and enable the firm, coping with a decline in Japanese oil demand, to tap new sources of revenue.
JX will participate in the $1.1 billion project to expand Vietnam's first... (Further analysis would depend on the specific query.)<|im_end|>
