diff --git a/components/nif/data.cpp b/components/nif/data.cpp
index 2023735252..c7f9e71fda 100644
--- a/components/nif/data.cpp
+++ b/components/nif/data.cpp
@@ -532,6 +532,44 @@ namespace Nif
         mKeyList->read(nif);
     }
 
+    void NiAdditionalGeometryData::read(NIFStream* nif)
+    {
+        nif->read(mNumVertices);
+        mBlockInfos.resize(nif->get<uint32_t>());
+        for (DataStream& info : mBlockInfos)
+            info.read(nif);
+        mBlocks.resize(nif->get<uint32_t>());
+        for (DataBlock& block : mBlocks)
+            block.read(nif, recType == RC_BSPackedAdditionalGeometryData);
+    }
+
+    void NiAdditionalGeometryData::DataStream::read(NIFStream* nif)
+    {
+        nif->read(mType);
+        nif->read(mUnitSize);
+        nif->read(mTotalSize);
+        nif->read(mStride);
+        nif->read(mBlockIndex);
+        nif->read(mBlockOffset);
+        nif->read(mFlags);
+    }
+
+    void NiAdditionalGeometryData::DataBlock::read(NIFStream* nif, bool bsPacked)
+    {
+        nif->read(mValid);
+        if (!mValid)
+            return;
+        nif->read(mBlockSize);
+        nif->readVector(mBlockOffsets, nif->get<uint32_t>());
+        nif->readVector(mDataSizes, nif->get<uint32_t>());
+        nif->readVector(mData, mDataSizes.size() * mBlockSize);
+        if (bsPacked)
+        {
+            nif->read(mShaderIndex);
+            nif->read(mTotalSize);
+        }
+    }
+
     void BSMultiBound::read(NIFStream* nif)
     {
         mData.read(nif);
diff --git a/components/nif/data.hpp b/components/nif/data.hpp
index 0eb6387f89..1596579fdd 100644
--- a/components/nif/data.hpp
+++ b/components/nif/data.hpp
@@ -362,6 +362,41 @@ namespace Nif
         void read(NIFStream* nif) override;
     };
 
+    struct NiAdditionalGeometryData : public Record
+    {
+        struct DataStream
+        {
+            uint32_t mType;
+            uint32_t mUnitSize;
+            uint32_t mTotalSize;
+            uint32_t mStride;
+            uint32_t mBlockIndex;
+            uint32_t mBlockOffset;
+            uint8_t mFlags;
+
+            void read(NIFStream* nif);
+        };
+
+        struct DataBlock
+        {
+            bool mValid;
+            uint32_t mBlockSize;
+            std::vector<uint32_t> mBlockOffsets;
+            std::vector<uint32_t> mDataSizes;
+            std::vector<char> mData;
+            uint32_t mShaderIndex;
+            uint32_t mTotalSize;
+
+            void read(NIFStream* nif, bool bsPacked);
+        };
+
+        uint16_t mNumVertices;
+        std::vector<DataStream> mBlockInfos;
+        std::vector<DataBlock> mBlocks;
+
+        void read(NIFStream* nif);
+    };
+
     struct BSMultiBound : public Record
     {
         BSMultiBoundDataPtr mData;
diff --git a/components/nif/niffile.cpp b/components/nif/niffile.cpp
index 6201c4df44..4f1eaae257 100644
--- a/components/nif/niffile.cpp
+++ b/components/nif/niffile.cpp
@@ -169,11 +169,13 @@ namespace Nif
             { "NiVisData", &construct<NiVisData, RC_NiVisData> },
 
             // Gamebryo
+            { "NiAdditionalGeometryData", &construct<NiAdditionalGeometryData, RC_NiAdditionalGeometryData> },
             { "NiBoolData", &construct<NiBoolData, RC_NiBoolData> },
             { "NiDefaultAVObjectPalette", &construct<NiDefaultAVObjectPalette, RC_NiDefaultAVObjectPalette> },
             { "NiTransformData", &construct<NiKeyframeData, RC_NiKeyframeData> },
 
             // Bethesda
+            { "BSPackedAdditionalGeometryData", &construct<NiAdditionalGeometryData, RC_BSPackedAdditionalGeometryData> },
             { "BSShaderTextureSet", &construct<BSShaderTextureSet, RC_BSShaderTextureSet> },
 
             // DYNAMIC EFFECTS
diff --git a/components/nif/record.hpp b/components/nif/record.hpp
index 23bdebb7f7..8240bf4026 100644
--- a/components/nif/record.hpp
+++ b/components/nif/record.hpp
@@ -84,6 +84,7 @@ namespace Nif
         RC_BSMultiBoundAABB,
         RC_BSMultiBoundOBB,
         RC_BSMultiBoundSphere,
+        RC_BSPackedAdditionalGeometryData,
         RC_BSRefractionFirePeriodController,
         RC_BSRefractionStrengthController,
         RC_BSShaderNoLightingProperty,
@@ -96,6 +97,7 @@ namespace Nif
         RC_DistantLODShaderProperty,
         RC_HairShaderProperty,
         RC_hkPackedNiTriStripsData,
+        RC_NiAdditionalGeometryData,
         RC_NiAlphaAccumulator,
         RC_NiAlphaController,
         RC_NiAlphaProperty,