After video footage of the dead rat in the woman's soup circulated on social media, the chain's shares dropped by 12%, losing £145m in value to reach its lowest level since October previous year, before regaining value.
As reported by Kankan News, the woman and her husband were offered the equivalent of £559 in compensation by the restaurant at the time of the incident.
The restaurant called Xiabu Xiabu, is based in Weifang, a city in the eastern province of Shandong.
The woman and her husband anxious the rat brew would affect their baby, since the mother had already taken a couple gulps of the soup when she made the horrifying discovery at Xiabu Xiabu on September 6. The staff at the restaurant allegedly offered the couple 20,000 yuan, which is $3,000 United States dollars, for them to have an abortion if they were concerned for the child's health.
Mr Ma said he was told "if you are anxious about the baby, then we'll give you 20,000 yuan [$4000] to abort it". "I'm never going to eat hotpot outside again". On 5 September, the day before the incident, share prices closed at HK$12.16.
"Xiabu Xiabu has always been one of my favourite restaurants, I thought they were quite clean as well..."
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Another shocked user said: "If something happens to her baby how are they going to compensate her?"
The restaurant initially put out a statement on Saturday saying that it had "ruled out" the possibility that a lack of hygiene had caused the rat to end up in the hotpot, but later deleted it.
Hotpot soups are a popular Chinese dish where seasoned broth is placed, simmering, at the table in front of you as the items are added in.
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As word of the shocking find made it to major global news sites, the scandal start impacting the restaurant chain's bottom line. It's a fun, sociable meal popular across China - a country with much regional variation in cuisine - and chains are cropping up alongside mom-and-pop stalls.
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