Nium, a Singapore-headquartered B2B payments company, has raised an additional $5 million in its latest funding round, according to its regulatory filings.According to filings with Singapores Accounting and Corporate Regulatory Authority (ACRA) seen by DealStreetAsaia DATA VANTAGE, the fresh investment from New York-based Moore Strategic Ventures brings Niums Series D+ funding to nearly $8 million. It had raised $2.96 million in February as part of the round in equity funding.