Viet Nguyen Dinh Tuan, a resident of Ho Chi Minh City in Vietnam has won a Guinness World Record for his impressive whisky collection. His collection consist of 535 old and rare Scotch whiskies valued to be worth £10,770,635 (approximately $13.9 million).

With the 21% buyer’s premium that would be added if the collection were sold through an auctioneer like Sotheby’s or Bonhams, Guinness World Records officially valued the collection at £13,032,468 (approximately $16.7 million) on Nov. 1, 2019.

Among the Vietnamese businessman’s treasures are three bottles of the 1926 Macallan Fine and Rare whisky (considered to be the “Holy Grail” of whiskies) and a bottle of the oldest Bowmore ever released.

The quest to own such rare gems has been a lifelong passion for Viet. “Every spare moment I get, I’m searching auction sites and trading websites to find famous and rare whiskies from around the world,” he says. “Clearly this requires a lot of patience and no shortage of tenacity, but I’m proud of my efforts.”

He added: “As for my collection, I have no intention of selling any of it. Not one bottle. In fact, I’ll continue to hunt for more old and rare bottles and add to and enrich my collection.”