By Jon Robinson Turnover at the UK arm of Chinese telecommunications giant Huawei has been slashed by more than £1bn since 2019 as the impact of UK and US restrictions bite. The London-headquartered business has reported a turnover of £229.56m for 2023, down from the £359m it posted in 2022. The latest figure comes after Huawei’s turnover totalled £481m in 2021, £931.2m in 2020 and £1.26bn in 2019. According to newly-filed accounts with Companies House, the firm’s pre-tax profit also fell from £17.5m to £11.4m in 2023. In 2021 its pre-tax profit stood at £16.7m while it reported totals of £36….