Sequoia Capital’s China unit has set up an office in Singapore and is working on plans to use it as a base for investing in Southeast Asia, Financial Times reported, citing sources familiar with the matter.The establishment of a presence in Singapore reflects HongShan's ambition to expand its investment reach and establish a strong foothold in the Southeast Asian region, potentially intensifying the competitive landscape between it and Peak XV Partners, which primarily focuses on the Indian and Southeast Asian markets.Previously, in June, Sequoia Capital, a well-known Silicon Valley venture capital, split off its China and India businesses and rebranded them as