Saudi Arabia is joining forces with Japanese telecom firm Softbank (SFTBF) to form a tech investment fund worth as much as $100 billion, making it one of the largest on the planet. Softbank CEO Masayoshi Son said that over the next decade the fund would be the biggest investor in the technology sector. Saudi Arabia's sovereign wealth fund will put up as much as $45 billion of the money, with Softbank throwing in at least $25 billion. Neither partner appears to be deterred by warnings of potential bubbles in the valuations of big startups and established tech companies in the US. Funding for startups has also plunged recently in India. Earlier this year, Saudi Arabia announced an ambitious plan to create a huge sovereign wealth fund that would be worth 7 trillion riyals ($1.9 trillion) by 2030, which would make it by far the biggest in the world.