Nautilus Minerals

Nautilus Minerals common shares began trading on OTCQX International under the ticker NUSMF to improve access to U.S. capital markets.

Nautilus Minerals signed a binding heads of agreement with Tongling Nonferrous Metals Group for the sale of material extracted from its Solwara 1 deposit in the Bismarck Sea, Papua New Guinea.

Nautilus Minerals ended 2011 with $149.4-million (U.S.) in cash after receiving the first deep sea hard-rock mining lease for its Solwara 1 project in Papua New Guinea.

Nautilus Minerals filed two updated NI 43-101 technical reports covering its Pacific tenements, including a revised Solwara project mineral resource estimate.

Nautilus Minerals says Teck Resources has declined to participate in exploration activities in Fijian waters under their 2007 area of interest agreement.

Nautilus Minerals' Tongan subsidiary Tonga Offshore Mining Ltd. formally signed a 15-year exploration contract with the International Seabed Authority for 75,000 square kilometres in the Clarion Clipperton zone.

Nautilus Minerals disclosed that non-executive director Russell Debney sold 63,000 common shares in four tranches between Dec. 29, 2011, and Jan. 4, 2012.

Nautilus Minerals filed its updated mineral resource estimate for the Solwara project in Papua New Guinea's Bismarck Sea, with the full technical report now available on SEDAR.

Nautilus Minerals directors David De Witt and Russell Debney each exercised 100,000 options at 99 cents per share on Dec. 21, 2011, alongside a 12,000-share employee option exercise.

Nautilus Minerals chairman Geoffrey Loudon exercised 150,000 options at 99 cents per share on Dec. 20, 2011, ahead of their AIM admission.