Mr. David Strang reports

LUMINA RECEIVES RESULTS FROM ADDITIONAL METALLURGICAL TESTS AT TACA TACA-SIGNIFICANT IMPROVEMENT IN GOLD AND MOLYBDENUM RECOVERY

Lumina Copper Corp. has received the results from additional metallurgical testing conducted on its 100-per-cent-owned Taca Taca copper/gold/molybdenum project located in Salta province, northern Argentina. The objective of the latest testing was to optimize metal recoveries from both supergene and primary mineralization to a bulk copper/molybdenum concentrate. The results show that both gold and molybdenum recoveries have increased significantly while copper recoveries have also improved when compared with the results from the initial test work.

The results from the optimization testing program and comparisons with the initial test work are shown in the table.

                  Cu head   Mo head   Au head        Cu        Mo        Au 
                    grade     grade     grade  recovery  recovery  recovery 
                       (%)       (%)     (g/t)       (%)       (%)       (%)

Supergene(1)                                                                

Initial testing      0.60     0.021      0.11      85.2      59.3      37.4 
Optimization         0.75     0.033      0.08      89.9      72.2      60.8 

Primary                                                                     

Initial testing      0.43     0.020      0.10      85.1      62.5      38.6 
Optimization         0.45     0.028      0.16      92.8      84.0      62.4 

(1) The comparative recoveries shown in the table are based upon recoveries 
    to a bulk copper/molybdenum concentrate and are not directly comparative 
    to those recoveries shown in the press release dated Jan. 11, 2011, as 
    those results highlighted recoveries to both final copper and molybdenum 
    concentrates. Generally, higher recoveries to a bulk concentrate will 
    correlate to higher recoveries to final copper and molybdenum concentrates. 
    The higher molybdenum recoveries may be attributable to both higher head 
    grades as well as recovery optimization.                        

The optimization test work, completed at C.H. Plenge & CIA SA in Lima, Peru, was conducted on two composite samples each comprising approximately 80 kilograms of core material from three drill holes in the supergene and primary mineralized zones. The test work focused on optimizing copper, gold and molybdenum recoveries through changes to pH levels, retention time in the flotation cells and increased amounts of various reagents.

The results from the metallurgical test work completed to date show that a high-quality, clean (less than 0.03 per cent arsenic) copper concentrate and a commercial-grade molybdenum concentrate can be produced from both supergene and primary mineralization at Taca Taca at metal recoveries that are within industry standards for mining operations processing similar types of mineral resources.

The metallurgical testing program is now focused on further lock cycle tests on a larger representative sample of the mineral resource, crushing and grinding test work for mill design and sizing, and testing of leached cap material to determine gold and copper leaching characteristics and recovery.

The Taca Taca copper/gold/molybdenum project, comprising approximately 2,500 hectares, is located in the Puna region of northwestern Argentina in Salta province, approximately 230 kilometres west of the provincial capital of Salta and 90 kilometres east of the world's largest copper mine, Escondida. Lumina is undertaking an 87,000-metre drill program (approximately 36,000 metres drilled to date) at Taca Taca to expand the known mineralization to depth and laterally to the north and south and upgrading the current mineral resource estimate from the inferred to indicated category.

On Oct. 9, 2008, the company released an independent National Instrument 43-101-compliant mineral resource estimate for the project that at a 0.4-per-cent copper equivalent cut-off contained inferred mineral resources of 841 million tonnes grading 0.47 per cent copper, 0.11 gram per tonne (g/t) gold and 0.018 per cent molybdenum (0.64 per cent copper equivalent(2)), containing 8.71 billion pounds of copper, 2.97 million ounces of gold and 333.70 million pounds off molybdenum. This mineral resource estimate does not incorporate or reflect the drilling results described above.

Additional information on Taca Taca, including the NI 43-101 technical report "Amended Taca Taca technical report" dated Jan. 22, 2010, by Robert Sim, PGeo, can be found on the company's website and on SEDAR.

Marshall Koval, PG, vice-president, corporate development, and the qualified person as defined by NI 43-101 for the engineering studies on the Taca Taca project, has reviewed and approved the content of this press release as they relate to the metallurgical test results.

(2) The copper equivalent cut-off grade used in the calculation of the mineral resource estimate was determined using $1.50 (U.S.) per pound copper, $600 (U.S.) per ounce gold and $6 (U.S.) per pound molybdenum and was not adjusted for metallurgical recoveries as these remain uncertain. The formula used in the calculation was as follows: CuEQ is equal to Cu per cent plus (Au g/t multiplied by 0.583) plus (Mo per cent multiplied by six).

We seek Safe Harbor.