Analyze the relationship between 'Berkshire Hathaway' and 'conglomerate' within the context of the input sentence.
Options: director/manager, headquarters location, industry, publisher

NEW YORK (Reuters) - Billionaire investing icon Warren Buffett said on Tuesday there are dozens of countries in which his sprawling Berkshire Hathaway Inc (BRKa.N) conglomerate would be interested in buying new businesses.
industry