Tata Sons will likely choose Singapore as a "key partner" for its semiconductor plans, a senior minister from the city-state said on Friday.Speaking to reporters after a meeting with Tata Sons chairman N Chandrasekaran earlier in the day, Singapore's minister for home affairs and law K Shanmugam said semiconductors was a "big discussion" point during the meeting."If they (Tatas) want to, they can do business with anybody in the world.