JOHANNESBURG, Oct 12 (Reuters) - South African business confidence fell marginally in September, with factors like energy supply, inflation and construction applying downward pressure in month-on-month terms, data showed on Thursday.

       The South African Chamber of Commerce and Industry (SACCI) Business Confidence Index (ZABCI=ECI) dropped to 108.2 in September from 108.6 in August.

       SACCI said in a statement that foreign business-related factors had the most positive short-term impact on business confidence in September.

       "The current business climate is not conducive to stimulating overall economic activity. Remedying this situation and enhancing the economy's long-term prospects will require appropriate investments in human capital and fixed capital stock," it added.

       Reporting by Tannur Anders Editing by Alexander Winning

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