The headline intercept measured 513.9m from 33m at 0.64% copper and 0.8g/t gold, or 2.15g/t gold-equivalent, and included 168m at 3.42g/t AuEq.
The second result was 319.62m at 1.81g/t AuEq from 215.98m.
The project is owned by Kwanika Copper Corporation, 65% held by Serengeti and 35% by Korean company POSCO DAEWOO.
The drilling programme was completed last month to feed into a prefeasibility study, slated for completion mid-2019, being funded by the minority partner.
"The long intervals show excellent grades near surface within the potential open pit domain, and also demonstrate that strong gold and copper-rich mineralisation is present within the potential underground domain outlined in our 2017 PEA," Serengeti president and CEO, and Kwanika president, David Moore said.
The PEA had estimated a 15,000tpd operation producing 600.6 million pounds of copper, more than 676,000 ounces of gold and 2.6Moz of silver over the 15-year mine life, at a production cost of US$1.20/lb of copper with an initial capex of C$476 million (US$363 million).
Serengeti had $860,000 (US$656,000) in cash and Kwanika $3.4 million (US$2.6 million) in August, according to a recent presentation.
Shares in Serengeti rose more than 14% or C5c to 40c on Friday, capitalising it over $36 million.
