Creating new trade good

As title said want created new trade good while still have all other trade goods still.
but have problem get show up as build menu ingame.
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ps - in this <- just so does get rid breaks
<-Improvement>
<-S_Name>Mega Xinathium Hull Plating<-/S_Name>
<-S_QueryGraphicName>TradeGood5.png<-/S_QueryGraphicName>
<-S_InternalName>TriStrontiumSteel<-/S_InternalName>
<-ManufactureBonus>1000<-/ManufactureBonus>
<-MoraleBonus>1000<-/MoraleBonus>
<-EconomicBonus>20000<-/EconomicBonus>
<-PrestigeBonus>1000<-/PrestigeBonus>
<-PlanetaryQualityBonus>1000<-/PlanetaryQualityBonus>
<-PlanetaryDefenseBonus>1000<-/PlanetaryDefenseBonus>
<-StarshipQualityBonus>1000<-/StarshipQualityBonus>
<-ResearchBonus>1000<-/ResearchBonus>
<-S_Type>TradeGood<-/S_Type>
<-S_TechRequirement>AllHullsMod<-/S_TechRequirement>
<-Research>1000<-/Research>
<-AbilityType>12<-/AbilityType>
<-AI>1<-/AI>
<-AbilityAmount>1500<-/AbilityAmount>
<-SpecialID>15<-/SpecialID>
<-Cost>1000<-/Cost>
<-S_BriefDescription>Makes ships greatly tougher.<-/S_BriefDescription>
<-S_Description>This proprietary metal will allow all our ships to be 150% more durable (hitpoints).<-/S_Description>
<-Maintenance>0<-/Maintenance>
<-Industry>1000<-/Industry>
<-Employment>40<-/Employment>
<-Food>50<-/Food>
<-S_IconName>TradeGood5.png<-/S_IconName>
<-Indestructable>1<-/Indestructable>
<-/Improvement>

<-Improvement>
<-S_Name>Supreme Social Order<-/S_Name>
<-S_QueryGraphicName>TradeGood5.png<-/S_QueryGraphicName>
<-S_InternalName>SupremeSocialOrder<-/S_InternalName>
<-ManufactureBonus>0<-/ManufactureBonus>
<-MoraleBonus>0<-/MoraleBonus>
<-EconomicBonus>20<-/EconomicBonus>
<-PrestigeBonus>0<-/PrestigeBonus>
<-PlanetaryQualityBonus>0<-/PlanetaryQualityBonus>
<-PlanetaryDefenseBonus>0<-/PlanetaryDefenseBonus>
<-StarshipQualityBonus>0<-/StarshipQualityBonus>
<-ResearchBonus>0<-/ResearchBonus>
<-S_Type>TradeGood<-/S_Type>
<-S_TechRequirement>Planetplaning<-/S_TechRequirement>
<-Research>1000<-/Research>
<-AbilityType>12<-/AbilityType>
<-AI>1<-/AI>
<-AbilityAmount>150<-/AbilityAmount>
<-SpecialID>15<-/SpecialID>
<-Cost>1000<-/Cost>
<-S_BriefDescription>Makes ships greatly tougher.<-/S_BriefDescription>
<-S_Description>This proprietary metal will allow all our ships to be 150% more durable (hitpoints).<-/S_Description>
<-Maintenance>0<-/Maintenance>
<-Industry>0<-/Industry>
<-Employment>40<-/Employment>
<-Food>50<-/Food>
<-S_IconName>TradeGood5.png<-/S_IconName>
<-Indestructable>1<-/Indestructable>
<-/Improvement>