General conditions for purchasing aluminum

XA - Other documents

Ident.-No.: EUR-SCM-XA-0001 Rev.-No.: 50 Valid until: 12.11.2023 Page: 1 / 24

General conditions for purchasing aluminum

Information category: tbd

Created: 18.05.2021 Approved: 20.05.2021

Owner: Carrascosa Santana, Javier

Approver: Vilacha, Carlos

® Nemak Frankfurt / Any commercial use and/or transfer to third parties is prohibited!

Computer-controlled document – approval by E-Mail-System. Original document and history in the QM intranet (SharePoint database) ©Nemak | Internal

General conditions for purchasing aluminum A compendium for suppliers

2021

Approver: Carlos Vilacha Owner: Alex Fuhr

Valid for: Nemak Europe Revision: 50






Computer-controlled document – approval by E-Mail-System. Original document and history in the QM intranet (SharePoint database)

©Nemak | Internal

Preamble

This unified “General conditions for purchasing aluminium” respective EUR-SCM-XA-0001 and the

“Technical specifications for purchasing aluminium alloy” respective EUR-SCM-XA-0002 were

created to lighten the conversation between Nemak and its suppliers. In the entire document the English version is valid in case of variations between the different language versions.

These “General conditions for purchasing aluminium” is structured in two sections. In the first section are the ”Nemak Europe General conditions” listed. In the second section are the “Nemak plant additional requirements” listed. Any changes must be approved by the central SCM and must be included in this book”. Supply Chain Management Nemak Europe 01.02.2013







©Nemak | Internal

1. Nemak Europe General conditions: 1.1 General requirements for purchasing aluminum alloy Chemical composition and documentation

- Chemical composition: - The chemical composition shall conform to the technical specifications for each

alloy. - Tolerance limits shall be complied with, taking into account the Rounding rules set

forth in EN 1706. - The chemical composition of each furnace charge shall be determined upon removal

from mould at the beginning, in the middle, and at the end of casting, minimum 3 samples per 50 tons.

- Process control: Melt treatment & quality:

- After chlorine flushing, the melt is to be degassed with nitrogen or argon. - After chlorine flushing no addition of sodium is allowed! If incoming goods show

sodium content of 0 ppm, the outgoing analysis of the supplier should be taken into account.

- Fracture appearance: - Uniform across cross-section of ingot - The modify structure of ingot must be verified on micro section. - Free from - Non-metallic inclusions - Visible gas pores - Foam inclusions. - The micro section sample and the records must be stored at least 1 year.

- Sampling preparation:

- At least 1 mushroom-type or cylindrical specimen and 1 ingot specimen per charge shall be supplied together with the charge (no ingot specimens necessary for continuous casting).

- For each batch a micro section of an ingot has to be prepared (from the middle of the pouring process).

- A mushroom sample is to be cast at the beginning, middle, and end of the ingot casting process.

- Cross section diameter of the sample has to be less than 60 mm.

- Sampling chemistry: - Micro sections listed above must be sent in with the delivery. - Result of chemical composition analysis through emission spectrometry of the whole

melting is an arithmetical average of analysis results of all samples from the melting. 3 measurements per mushroom.

- Radioactivity:

- The metal to be supplied shall be free from ionizing radiation in excess of natural radiation, Radiation max. 1µSV/h.

- Density index / Hydrogen content:

- Case for ingots: Density Index required is maximum 6,0% in Cu die or Steel die (Cu die is preferred); Hydrogen content required is maximum 0,20cm3/100g. One of the values (DI or Hydrogen) has to be indicated in the raw material certification for every delivery.

- Liquid cases please see specific Nemak plant additional requirements attached in this document.

Surface - Closed, bright metallic, dry

- No signs of corrosion and/or oxide films. - Blocks without sharp edges







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Ingots/billets sections Stacks

- Weight per ingot: 5 to 10kg. - Length: Max. 720mm. shorter ingots are preferred. - Continuous ingots are allowed.

- Single stack: Max 700Kg. Double-stacks approx. 1,000-1,400 kg stacked on single

supporting. - Ingots of the same alloy are to be used as stack base. - Height of supporting ingot (Foot) max: 100mm (+/-10mm). - Height from the floor: Max: 730mm. Max: 13 rows. - Height of stacks must be same in one shipment. - The material shall be bundled such that charges are strictly separated. - It shall be possible to safely stack three stacks on top of one another. - Handling with every stack has to be made possible via the shape of blocks in the

bottom row or via pre-cast legs from the same. - Inclined 30% relative to horizontal floor.

Packaging - Aluminum straps preferred but also plastic is allowed. - Steel straps or package with shrink wrapping is possible only under approval from the

Nemak plant. - Firmly bundled, secured against slipping. - Plastic foil around the stacks is not allowed. - In special cases packing instructions will be provided by each Nemak plant.

Marking - Marking by waterproof paint as a minimum on both front and rear ends of the double

stacks or perpendicular on two sides of a single stack as explicitly stated below see chapter 2. Marking procedure.

- Marking by casting-in, punch-marking or stamping of the material symbol (see below), charge number and manufacturer's symbol

- Every ingot stack is to be labeled with the alloy type, batch number, and total stack weight

- The ingot stacks are to be labeled with numbers (1 to ..) in the order they were cast - The used colour has to be resistant to unintentional wash off. Furthermore the colour

must not have any negative repercussions on the metallic characteristics and should be environmentally compatible.

- See Technical specification (EUR-SCM-XA-0002) for every alloy colour.

Shipping documentation

a) Material certification: - The average value of the chemical composition shall be indicated in wt.% or ppm on

the acceptance test certificate to be provided in accordance with EN 10204 3.1; all elements specified in these engineering specifications shall be indicated, density index and radioactivity also shall be included.

- Minimum two copies shall be delivered. - First deliveries shall be identified as trial loads in the certification and in all

accompanying documents, as well as the origin of the material shall be indicated in the documents.

- All suppliers must provide the Safety Data Sheet for the Aluminiun Alloys according to the Restriction of Chemicals (REACH) Regulation (EC) No 1907/2006

b) Others: Additional data to be indicated in the works certificate: - Manufacturer´s identification (according to EN 1676) - Order number - Delivery note No. - Material symbol - Charge No. - Charge weight. - Weight / packaging list:

Charge number.

Number of Bundle.

Individual Bundle weight.







©Nemak | Internal

Total number of delivered numbers.

Total weight per charges.

Total delivered weight. - All components listed in point 1 and in "Reference density” paragraph on the Quality

Certificate has to be given. Delivery conditions

- It shall be possible to unload the transport vehicle over its longitudinal sides. - The stacks are to be delivered in a dry and free of dust condition in canvas covered

trucks. - Delivery time will be established by each plant. - If for some reason you will be not able to deliver in this time window (occasionally)

please inform Nemak plant per email and by phone.

Liquid delivery conditions

- Please look for specific requirement in each Nemak plant in section 2, in this document.

First supply delivery (trial load)

- Delivery of 3 ingots and mushrooms, micro sections. - After positive result of 3 ingots and micro sections, supplier is allowed to delivery whole

truck. - Supplier shall send PPAP document and samples with the truck. - Reminder, from PPAP requirements, that all the new alloys, or new suppliers,

should sent Material Data Sheet via MDSystem - Certification and all accompanying documents shall be identified as trials load, as well

as the origin of the material shall be indicated in the documents.

Claims handling

- The Buyer reserves its right to verify compliance with these specifications. - Special release of non-conforming material may be possible in exceptional cases. - Supplier shall guarantee strict conformity to the specified quality characteristics. - Deliveries outside the specification will be sent back to the supplier. - Any deliveries found to be not in conformity with these engineering specifications will

be rejected. For any complaint resulting in the preparation of a test report, an administration fee of € 100 will be charged.

- In case of uncertainty between supplier and customer regarding conformity of chemical composition with requirements, tests have to be performed by an independent laboratory, which is approved by customer and supplier. Specialized appraisal has to be ultimate.

- The supplier must provide to Nemak plant and Aluminium purchasing department 8D report for every official claim.

QM - System - The supplier is certified according ISO 9001:2008 as minimum. - The supplier shall perform supplier quality management system development with the

goal of supplier conformity with IATF 16949. - The automotive standards according QS 9000 ff. or VDA, e.g.: FMEA, Control plan and

VDA 6.3 Process audit is mandatory. Further requirements are in dependence of the final customer of Nemak.

- Technical release according PPAP or PPF is mandatory.

EM-System

- Nemak Europe has established an environmental policy and requires its suppliers to undertake a similar environmental responsibility. For all activities, the supplier shall comply with legal (local, national, and global) environmental requirements.

- International Standards - ISO 14001 Certification – Highly recommended & expected, but not mandatory.

Applicable documents:

- GADSL Global Automotive Declarable Substance List

- EN 1676 Alloyed aluminium ingots for remelting

- EN 10204 metallic products - types of inspection documents







©Nemak | Internal

- EN 1706 Aluminium and aluminium alloys.

- Order.

Other supply conditions:

- The Supplier warrants that the Products shall be of excellent quality and shall comply with the specifications (EUR-SCM-XA-0001, EUR-SCM-XA-0002) of the Agreement and with Europe Supplier Quality Manual (EUR-SCM-AB-0004)

- The supplier is required to only use materials and processes that fulfill all requirements, applicable laws, environmental and safety regulations – in particular for hazardous substances, preparations and articles for the production country and for the recipient country (e.x. Conflict Minerals).







©Nemak | Internal

1.2 Marking procedure:

AB-Al Si10Mg(a) AB-Al Si10Mg (Cu) dv Except Fe, Mn, Bi, Ca, Cd, Li, Na, P, Sb Except Fe, Mn, Ni, Zn, Bi, Ca, Cd,

Li, Na, P, Pb, Sb

239 B 239 B

233 B

brown red brown

Pastel orange Pastel orange grey

red brown brown

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P

aste

l ora

nge

red

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P

aste

l ora

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red

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1.3 Quality of the Ingots The ingot surface is to be free of dross (fig. 1). The fracture surface should be free of nonmetallic inclusions and exhibit fine grains.

Figure 1: Oxide and dross Figure 1A: Oxide spinel







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1. Position of microsection:

Figure 2: Ingot microsection description

2. Microsection

Microstructure must be analyzed in complete microsection

Figure 3 : Full microsection

Microsection (after 1/3 ingot length

from filling side)

1/3 2/3

Fill direc







©Nemak | Internal

1.4 Alloy Microstructure

Figure 4: Microstructure modified Figure 4A: Microstructure modified

Microestrucure for the ingots must be free from segregations, Fe-needles and inclusions (fig. 5-9).

Figure 5: Not permitted AlFeMnSi-Needles Figure 6: not permitted inclusions







©Nemak | Internal

Figure 7: AlFeMnSi permitted as „china-script“

Figure 9: Unmodified eutectic Si Figure 9A. Modified eutectic Si

Figure 10. Not permitted Fe-Mn segregations Figure 11 Not permitted Fe-Mn segregation

Figure 12.not permitted AlFeMnSi-needles







©Nemak | Internal

2 Nemak plants additional requirements: 2.1 DILLINGEN Additional Requirements Delivery: Monday – Friday from 08:00-15:00

Chemical composition and documentation

See pictures attached

Surface No special requirements.

Ingots/billets sections Length: Max 63cm is preferred. Above 63cm will be able to buy in a very limited volume. Check with Aluminum purchasing team.

Stacks Weight of a single stack max. 600 kg.

Double stacks max 130cm width preferred, for ingots above 63cm double stack max 150cm.

Packaging Every two stacks shall be bundle together (next to each other)

Marking No special requirements.

Shipping documentation Three copies of material certification are needed with the delivery.

samples of the batch must be sent with the first part of the batch

Delivery conditions Please announce each delivery one day before per email (scan of delivery note, truck number).

First delivery (trial load)

Step 1: Visit of an expert of DIL quality department to the new supplier to know the production process.

Step 2: Delivery of 3 ingots and mushrooms, micro sections.

Step 3: After positive result of 3 ingots and micro sections, supplier is allowed to delivery whole truck.

Supplier shall send PPAP document and samples with the truck

PoDFA-test with the first batch (sample 1: from behind melting furnace, sample 2: from behind casting furnace.

Microstructure of Fe-phases Max. 3 Fe-needles with size of 0 - 50 µm are permitted in the ingot. In case of more than 3 Fe-needles with size of 0 - 50 µm or Fe-needles with size of 50 - 200 µm in the ingot microstructure, the ingot sample must be remelted in graphite crucible for 2 hours at 740 °C and cooled down in crucible at room temperature. In the microstructure of the remelting sample are Fe-needles with size of max. 50 µm permitted. Fe-needles in ingot with size of >200 µm are not permitted. Fe-phases as "china-script"-form are permitted in microstructure.







©Nemak | Internal

Delivery conditions for liquid alloy A319

Supplier departure temperature (max.) 820 °C

Arriving temperature to Nemak Plant 760 °C (Min. 710°C Max. 790°C in single cases)

Density index ≤10 % (Cu-die)

Density of alloy ---

Delivery weight Record from supplier for each ladle

Inclusion Identification and Quantification Analysis

PoDFA-test: 1/year

Delivery conditions for liquid alloy A356

Supplier departure temperature (max.) ---

Arriving temperature to Nemak Plant 780 °C (Min. 740°C Max. 820°C in single cases)




Inclusion Identification and Quantification Analysis

PoDFA-test: 1/year







©Nemak | Internal

2.2 LINZ Additional requirements

Delivery: Monday – Friday from 07:00 - 14:00 or 13:00 – 18:00 upon agreement


Yearly Off line PoDFA test for alloy AlSi7MgCu0,5 of one random ingot. PoDFA test needs to be done in a Nemak approved laboratory.


Ingots/billets sections No special requirements.

Stacks Max.weight of stacks 700 kg

Packaging Steel strap is allowed.


Shipping documentation No special requirements.

Delivery conditions No special requirements.

Density Index/ Hydrogen Content Case for ingots: 4,0% or 0,25 cm3/100g

Trial Load 3 deliveries for final approval

12 ingots will be tested

In a distance of 10mm around the fracture surface (*marked blue) foreign inclusions are acceptable under following conditions:

Foreign inclusions outside outside of the blue area are not allowed.

At the central area (*marked in yellow) shrinkage porosity is allowed

Max percentage [%]

3-5 mm > 5 mm

33 allowed allowed

50 allowed Not

allowed







©Nemak | Internal

2.3 WERNIGERODE Additional requirements Delivery: Monday – Friday from 08:00 - 14:30


No special requirements.



Stacks Bundle shall be stacked next to each other (double stack).

Single stack is possible with agreement of Nemak Wernigerode (agreement given by purchasing dep.).

Packaging No special requirements.


Shipping documentation Delivery notes should include the following sentence:

“Radiation max.1µSV/h“ .


First delivery (trial load) No special requirements.

Delivery conditions for liquid alloy

Supplier departure temperature (max.) ---

Arriving temperature to Nemak Plant 770ºC - 820ºC

Density index ≤10% (Cu-die)


Delivery weight Record from supplier for each container







©Nemak | Internal

2.4 GYÖR Additional requirements Delivery: Monday – Friday from 7:00 – 15:00


FeMn, FeMnSi phases in the alloys: - Secondary alloys maximum allowed 300 μm (Measured value must be write on the Quality certificate). - Primary foundry alloys maximum 200 μm (Measured value must be write on the Quality certificate).

Al3Fe pins in the structure: maximum allowed 90 μm Measured value must be write on the Quality certificate).



Stacks Double stacks are not allowed.



Shipping documentation No special requirements

Delivery conditions No special requirements

First delivery (trial load) No special requirements


Closer temperature Max 820°C

Delivery temperature minimum 730°C-maximum 820°C


K-index minimum „B” rating

Delivery weight Record from supplier for each container

Documentation The GYR-QAS-AE-0093 document has to fill with the information about the delivery and the results of measurements







©Nemak | Internal

2.5 Slovakia Additional requirements Delivery: Monday – Friday from 06:00 – 14:00





Stacks No special requirements.




Delivery conditions No special requirements

First delivery (trial load) No special requirements

Delivery Condition for liquid alloy

Supplier departure temperature (max.) 820 °C

Arriving temperature to Nemak Plant (710 – 790)°C with target 760 °C










©Nemak | Internal

2.6 Poland Additional requirements Delivery: Monday – Friday from 06.00 – 14.00




Ingots/billets sections Ingots weight 5Kg to 13 Kg.

Stacks Single stack max: 1000Kg.

Packaging Plastic straps required.

Marking Waterproof paint vertical stripes on all 4 sides on each stack

Waterproof marking (alloy identification numbers) is not allowed on top surface of first ingots of the stack (see pictures; red arrows show the not allowed places for marking, blue arrows show the places which are allowed)




Delivery Condition for liquid alloy

Supplier departure temperature (max.) 780°C

Arriving temperature to Nemak Plant 680°C - 780 °C

Density index ---

Density of alloy Min 2,55 g/cm3 for crucibles with unloading / opening from the bottom Min 2,60g/cm3 for crucibles with unloading / opening from the top

Delivery weight In delivery documentation on each ladle







©Nemak | Internal

2.7 Czech Republic Additional requirements Delivery: Monday – Friday from 6:00 – 20:00




Ingots/billets sections Ingot Length up to 730 mm allowed. Shorter ingots are preferred

Stacks Stack two bundles side by side (next to each other).

Single stack is allowed just under authorization from Nemak Czech Republic Purchasing department.












©Nemak | Internal

2.8 Starcam Additional requirements Delivery: Monday – Friday from 6:00 – 20:00





Stacks Stack two bundles side by side (next to each other).

Single stack is allowed just under authorization from Nemak Czech Republic Purchasing department.

Packaging Double bunches not allowed

Marking 1 metal/plastic/carton plate with a label fixed to the belt with following information : Type of alloy, lot,date,weight, supplier name. Placed on the top of the bunch.

Each bundle should be marked as stated in the corresponding specifications

Sprayed or hand written notice on the buttom ingot: lot-weight-alloy type



STARCAM unload it from the back side of the truck

First delivery (trial load) Technical release (approval) according to PPF mandatory


Liquid Delivery In pre-heated containers

Arriving temperature to Nemak Plant (740 – 810)°C with target 780 °C



Delivery weight ---







©Nemak | Internal

2.9 Etxebarria, Spain Additional requirements Delivery: Monday to Thursday from 8:00-18:00. Friday from 8:00-13:00. Any change is subject to the approval of smelting or purchasing responsible





Stacks No special requirements.












©Nemak | Internal

2.10 Turkey Additional requirements Delivery: Monday to Thursday from 8:00-18:00




Ingots/billets sections Length: max 80 cm (under previous agreement)

Widht: max. 76 cm

Stacks If width is <60cm every two stacks shall be bundle together (next to each other) and two stacks width can be max 115cm

Packaging Pallet strapping must be triple Nylon cover for the ingots

Marking According to the EUR-SCM-XA-0002

Shipping documentation Requirements All copy of shipping documents must be send to the buyer by e-mail or fax. All originals documents must be send to the buyer by fast carrier. Shipping details must be informed without delay. Documents must arrive without delay. Required original shipping documents: 3 orig. Invoice, sealed + signed 1 orig. + 1 copy ATR certificate 1 orig. + 1 copy Packing List 1 orig. Certificate of Analysis









©Nemak | Internal

History

Date Revision Changes Responsibility

22.09.2009 Draft Document new created UM

23.09.2009 Draft -01 Change of density index in LNZ UM

01.10.2009 Draft -02 Including Slovakia and Poland UM

07.10.2009 01 Approval of Revision 01 UM / DN

09.10.2009 02 Change of numbering UM

22.03.2010 03 Change of year of application IK

21.05.2010 04 Czech Republic: Change use of samples Hydro 3048-6 to 3048-7 (9.1)

Slovakia: Change of ingot weight and ingot height.(7.1) Microstructure requirements for AlSi6Cu4 (1.1.2)

UM / IK

08.06.2010 05 Change of special delivery conditions for Dillingen UM

16.08.2010 06 Change of special delivery conditions for Slovakia IK

09.09.2010 07 Change of special delivery conditions for Dillingen IK

01.02.2011 08 Change of special delivery conditions for Wernigerode (page 21) Year change on front page

IK

UM

07.07.2011 09 Change of explanation / scope on page 1 UM

28.09.2011 10 Change of plant specific conditions Linz (4.1. and 4.2) Ingot weight: max. 8kg

UM

24.10.2011 11 Change of plant specific conditions Linz 4.1: Format mistake, text was double. 4.2: Delivery time, text translated in German, text was double, text was missing from the English version

MF / CV / AS

28.10.2011 12 Change of plant specific conditions Wernigerode

5.1/5.2: Text supplemented: Spectral analysis has to conforms with Hydro 3012-3, 3045-2,3048-7

MF / CV / DF

07.11.2011 13 Change of plant specific conditions Dillingen 3.1. Text supplemented: Ingots must be max. 63 cm length, for double-stacks max. 130 cm width.

CV/MF/FR

14.11.2011 14 Change of plant specific conditions Slovakia 7.1 Surface “blocks without sharp edges”, ingots/billet sections 6-10kg

CV/MF/BS

18.01.2012 15 Change of plant specific conditions Slovakia 7.1 and 7.2. Text supplemented: Spectral analysis has to conform to following reference material…”

CV/MF/BS

27.02.2012 16 Change of plant specific condition CZR. Stacks. CV/MF/JC

04.05.2012 17 Change of plant specific condition: “DIL delivery conditions” CV/IK

02.11.2012 18 Change of general conditions plant specific conditions GYR CV/MF/JC

29.11.2012 19 Change of general conditions radiation CV/MF

07.02.2013 20 Change of document layout and chapter/sections, update preamble, Review and standardization of all requirements; delete language special translation only the English version is valid.

CV/MF/all Plants

17.04.2013 21 Add new picture 9 in Alloy Microstructure section CV/FR/LG

18.04.2013 22 Modification in first page, added Revision and valid for Nemak Europe

CV/MF

26.08.2013 23 Modification of Nemak GYÖR additional requirements IK/MF

12.09.2013 24 Modification of Nemak GYÖR additional requirements IK/MF

09.01.2014 25 Changes in POL additional requirements SD/MF







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11.02.2014 26 GYR change in K-index SD

13:08:2014 27 Add Additional requirements microstructure

Add Additional requirements from STARCAM

SD

09.03.2015 29 Delete sentence regarding hydrogen content

Add requirement WER shipping documentation and Stacks

SG

06/10/2015 30 Change Starcam Marking Requirements SD

25/11/2015 31 Additonal description of allowed and not allowed Fe-phases in microstructure of ingots (Nemak DIL)

Liny timing and stacks requirements

IK

17/03/2015 32 Change of special delivery conditions for Starcam JM

09/01/2017 33 Additional general requirements for purchasing aluminum alloy added – page 4 (Shipping documentation) and 5 (First supply delivery (trial load))

IK

24/01/2017 34 Logo update IK

16/02/2017 35 Change of delivery time in WER IK

16/05/2017 36 Replacements of ISO/TS 16949 for IATF 16949 new global standard.

AA

12/07/2017 37 Additional supply conditions added (page 6) IK

25/09/2017 38 Change of delivery window in CZR and STR (page 19 and 20) Change of delivery window in SVK (page 17)

IK

26/10/2017 39 Special Conditions for Turkey JM

11/12/2017 40 Change in plant specific requirements in POL (page 18) IK

13/03/2018 41 Change in plant specific requirements in POL - marking (page 18)

IK

12/04/2018 42 Change in plant specific requirements in POL - approval (page 20)

IK

17/09/2018 43 New Additional Requirement for Czech Republic AA

10/02/2019 44 Update Other Supply Condiitons: Supplier Quality manual instead of Supplier Quality Management Requirements

JM

04/03/2019 45 Add requirement for shipping documentation = Safety Data Sheet

JC

15/01/2020 46 Change the stack max.weight (Linz Requirements) Reminder about IMDS documentation for Trials

JC/JM

31/03/2020 47 ECR: LNZ/2020/0046 Update chemical compositions and documentation in LNZ (Yearly PoDFA Analysis for AlSi7MgCu0,5)

JC

16/11/2020 48 ECR: LNZ/2020/0001 Trial Load and Breaking Test (inclusions analysis) ECR: LNZ/2020/0001 & 0002 ECR: POL/2020/0001 ECR: RUS/2020/0001 ECR: WER/2020/0001 ECR: DIL/2020/0001 ECR: GYR/2020/0004 ECR: SVK/2020/0001 ECR: TUR/2020/0001 ECR: CZR/2020/0001 ECR: STR/2020/0001 ECR: SPA/2020/0001 Density Index/Hydrogen content ECR: DIL/2020/0002 Liquid Delivery Conditions for A356

JC/AA







©Nemak | Internal

17/03/2021 49 ECR: CZR/2021/0001 Delivery window updated fro CZR and STR ECR: GYR/2021/0001 Liquid Deliveries Documentation for Nemak GYR

AA/JM

17/05/2021 50 ECR: CZR/2021/0002 Delivery window updated fro CZR and STR

JC