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UPDATE 1-Russian search engine Yandex shows loyalty with Moscow listing
* Could help to shield Yandex if Western sanctions tighten (Adds CEO quote, analyst comment, more context)
Pennon hit by landfill writedowns
Pennon Group hit by £43m writedown on its landfill sites due to taxes and other policies designed to discourage burial of domestic and industrial rubbish
UPDATE 1-Hungary court rules against OTP in landmark fx loan case
* Court says exchange rate spread on fx loan was unfair, invalid
