Firm says production rose for the period, even as sales were stagnant.
State says prices should be lowered because prices are cheaper in neighboring areas.
CEO of Southern Cement expects crisis for the month of Ramadan.
Cement consumption also registers spike year on year.
Trade Group says government's decision to sell off assets in the past has yielded negative results.
Unexpected real estate fall has exacerbated decline in the market.
Shipments rose by double digits in the first eight months of the current financial year.
Trade group has asked the government to implement price controls on building materials.
Aggregates prices also rose, but concrete rates declined.
Cement makers say unstable energy supplies to blame.[$}
Weaker demand seen as reason why price increases failed to sustain.
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