PERMIT REVIEW SUMMARY

Permit Writer:	Chappell Ford				Date:	May 27, 2026

Company Name:	The Korex Corporation, Korex Sardis Facility

Facility Location:	100 Rainwater Street
			Sardis, MS 38666

Source Number:	2100-00049

County: 		Panola

FACILITY DESCRIPTION

Korex Corporation (Korex) is proposing to build a manufacturing facility inside of an existing warehouse in Sardis, MS. The proposed facility will contain:
•	Six (6) extrusion blow molding lines for the production of HDPE bottles including
o	Material preparation and melting (resin feeding and plasticization)
o	Parison extrusion (formation and extrusion)
o	Bottle blowing (clamping, inflation, and cooling)
o	Finishing and quality control (ejection, trimming/recycling, and leak testing)
o	Recycling (cleaning and shredding, melting and pelletizing)
•	Six (6) production lines for formulating, blending, and bottling liquid household cleaners
o	Raw material delivery and storage
o	Product blending
o	Day tank filling
o	Bottle filling lines
o	Finished product packaging
o	Inventory and Shipping
•	Six (6) production lines for the formulation, blending, and retail packaging of solid chlorine tablets and powder containing trichloroisocyanuric acid (TCCA), calcium hypochlorite, and/or sodium dichloro-s-triazinetrione dihydrate (Dichlor)
o	Raw material delivery and storage
o	Product blending
o	Powdered product and tablet production
o	Finished product packaging
•	Six (6) Storage tanks containing Sodium Hypochlorite

The facility will extrude HDPE pellets into containers then formulate and package liquid household cleaners. The facility will also produce and package solid chlorine tablets.

Korex will operate under SIC codes 2821, 2842, and 2899 and NAICS codes 325211, 325612, and 325998. 

PROJECT/PERMIT ACTION DESCRIPTION

Korex is seeking a Permit to Construct Air Emissions Equipment. 

EMISSION SUMMARY

Emission factors for PER uncontrolled product storage were found in AP-42, Table 6.6.2-1 and were used in calculating the uncontrolled emissions below. 

Pollutant	Proposed Facility Uncontrolled Emissions (tpy)	Exceed Title V Threshold (Yes/No)?	
PM/PM10/ PM2.5	18.03/8.66/8.57	No	
SO2	0	No	
NOx	0	No	
CO	0	No	
VOC	4.65	No	
H2S	0	No	
Total HAP	2.80	No	
Individual HAP	2.79	No	

As shown in the table above, Korex does not have the potential to emit (PTE) that exceeds the Title V threshold of 100 tpy for any criteria pollutant or the 25 tpy limit for Total HAPs and the 10 tpy limit for any Individual HAP. Therefore, the facility will be considered a True Minor Source and will not require a permit to operate. However, since the facility’s emissions of PM is greater than 10 tpy, the facility is required to obtain a permit to construct. 

APPLICABLE/PROPOSED PERMIT LIMITATIONS

The permittee will be a True Minor Source after construction and will not be subject to any limits outside of
•	Opacity < 40%
•	General Nuisances are prohibited
•	PM: E = 4.1 p 0.67
•	General chemical emissions are prohibited

NSPS APPLICABILITY

40 CFR 60, Subpart VVb—Standards of Performance for Equipment Leaks of VOC in the Synthetic Organic Chemicals Manufacturing Industry for Which Construction, Reconstruction, or Modification Commenced After April 25, 2023
The provisions of Subpart VVb apply to affected facilities in the synthetic organic chemicals manufacturing industry. A process unit is defined as all the equipment used to produce, as intermediate or final products, one or more of the chemicals listed in 40 CFR 60.489. The facility produces chlorine tablets and cleaning products that are not listed in 40 CFR 60.489. Therefore, the provisions of Subpart VVb are not applicable.

40 CFR 60, Subpart DDD—Standards of Performance for Volatile Organic Compound (VOC) Emissions from the Polymer Manufacturing Industry
The provisions of Subpart DDD apply to affected facilities involved in the manufacture of polypropylene, polyethylene, polystyrene, or poly (ethylene terephthalate) as defined in 40 CFR 60.561. The affected facilities designated below for polypropylene and polyethylene are inclusive of all equipment used in the manufacture of these polymers, beginning with raw materials preparation and ending with product storage, and cover all emissions emanating from such equipment. The facility makes HDPE storage containers in various sizes. HDPE is one of the named polymers in Subpart DDD. Korex Sardis does not manufacture polymers although it does extrude HDPE to manufacture bottles. Therefore, the provisions of Subpart DDD do not apply.

MACT APPLICABILITY

40 CFR 63, Subpart F—National Emission Standards for Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry
This subpart provides applicability provisions, definitions, and other general provisions that are applicable to 40 CFR 63, Subparts G and H. The provisions of subparts F, G, and H apply to chemical manufacturing process units that meet all the criteria specified below:
•	Manufacture as a primary product one or more of the chemicals listed in:
o	Table 1 of 40 CFR 63, Subpart F
o	Tetrahydrobenzaldehyde
o	Crotonaldehyde
•	Use as a reactant or manufacture as a product, or co-product, one or more of the organic hazardous air pollutants listed in Table 2 of 40 CFR 63, Subpart F
•	Are located at a plant site that is a major source
Korex does not manufacture or use as a reactant any of the chemicals in Table 1 or Table 2 of 40 CFR 63, Subpart F and the facility will not be a major source of HAPs. Therefore, the provisions of Subparts F, G, and H do not apply.

OTHER PERMITTING NOTES
•	The facility does not use any fuel burning equipment. 
•	All lines are accounted for in each emission—it is based off total throughput not an individual line.
•	Although there is a baghouse on Emission Point AA-003, the permittee is not taking any emission reductions based on the use of the baghouse. 
•	Although not required by 40 CFR 68.130, the facility intends to develop an RMP to address the potential generation of chlorine gas and nitrogen trichloride when TCCA reactively decomposes in the presence of small amounts of water and does not dissolve.
•	The HDPE lines will process pellet polymer. 
•	Tanks T1 through T6 will contain a sodium hypochlorite solution for which emissions are 
•	quantified as Emission Point AA-004. 
•	Tanks T7 through T9 will contain a sodium hydroxide solution and two surfactants used 
•	in the liquid cleaning products line. These compounds are non-volatile; therefore, no 
•	emissions are associated with these tanks. 
•	Tanks T10 and T11 will contain deionized water and will have no emissions. 
•	Tanks T12 and T13 will be blending tanks used in the liquid bleach processing line.
•	Tanks T14 and T15 will be intermediate tanks used to store final products after the addition of fragrances and prior to bottling. 
•	Tanks T16 and T17 will be unvented bottling line tanks under slight pressure. 
•	Emissions for T12 through T17 are accounted for in AA-002, the liquid cleaning products product line.

PUBLIC PARTICIPATION

The 30-day public notice period began on June 17, 2026, when the notice was posted on MDEQ’s website and ends July 17, 2026.