A TOP visiting US official is on a mission to further develop the economic relationship with Bahrain and urged the kingdom to take advantage of its technological telecom advances.US Under-Secretary of State for Economic Growth, Energy and The Environment Keith Krach, speaking at a roundtable discussion at The Four Seasons Hotel Bahrain Bay yesterday, said the two countries could build on their existing ties with its ‘clean and trusted’ 5G telecom technology, taking a snipe at rival Chinese offerings .