Bkt, page-9

This is from 4th August announcement so they refer to late August - perhaps early next week suggsting todays move is purely trying to accumulate at lower levels

Spherical graphitetest results expected in late August 2016
Black Rock Mining Limited (ASX.BKT) (“Black Rock Mining” or “the Company
”)
is pleased to announce excellent first-stage expandable graphite test results for its flake concentrates
. This programme has been completed by German group Dorfner Anzaplan, a global specialist in graphite testing and analysis.
A key desirable factor for this market is the expansion rate of graphite for a given initial volume. Typical expansion multiples for premium products are between 200
-400 times with higher multiples considered tobe superior
. The Mahenge concentrate sample easily surpassed this range with peak values of 530x to 580x for the >180 micron size fraction. These results easily surpass the performance characteristics ofcurrently utilised product
. Significantly, the finer flake fractions from 75 microns to 180 microns considerably outperformed similarly sized product from China, as did the <75μ fraction.
Graphite concentrates will be sent to end
-users for assessment during the current quarter
.
Quotations from the test report include:
“The expansion volumes for all flake sizes are
demonstrating superior expansion properties
referring to both flakes and powders”
“Typical Chinese expandable graphite powders of flake size <180μm have an expansion volume of 140-160 cm 3/g compared with 380cm 3/g achieved in the present test work”
“Chinese graphite powders of flake size <75μm have an expansion volume of 40-60cm

Based on these results it can be concluded that this flotation concentrate is highly suitable for the preparation of expandable graphite
”