New bid prices Guyana Goldfields 35% higher than Silvercorp offerBy Kitco Newsn (Kitco News) – Silvercorp Metals had an offer on the table at C$1.30 as of mid-May. The new offer values Guyana Goldfields at C$323 million. Guyana said the new offer represents a premium of approximately 35% over what Silvercorp was offering.